Home / 9,114.23-12,577.57-5,136.63

Finding the Fourth Proportional to 9,114.23, 12,577.57 and 5,136.63

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Solution

The fourth proportional to 9,114.23, 12,577.57 and 5,136.63 is: 7,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.23 : 12,577.57 = 5,136.63 : x
  2. Step 2: Convert to fraction form
    9,114.23/12,577.57 = 5,136.63/x
  3. Step 3: Cross multiply
    9,114.23x = 12,577.57 × 5,136.63
  4. Step 4: Simplify right side
    9,114.23x = 64,606,263.38
  5. Step 5: Solve for x
    x = 64,606,263.38/9,114.23
  6. Step 6: Final answer
    x = 7,088.50

Related Problems

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Half scale
Find fourth proportional to 18,228.47, 25,155.14 and 10,273.25
Double scale
Find fourth proportional to 9,115.23, 12,578.95 and 5,137.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.