Home / 9,191.94-12,685.01-5,000.19

Finding the Fourth Proportional to 9,191.94, 12,685.01 and 5,000.19

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Solution

The fourth proportional to 9,191.94, 12,685.01 and 5,000.19 is: 6,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.94 : 12,685.01 = 5,000.19 : x
  2. Step 2: Convert to fraction form
    9,191.94/12,685.01 = 5,000.19/x
  3. Step 3: Cross multiply
    9,191.94x = 12,685.01 × 5,000.19
  4. Step 4: Simplify right side
    9,191.94x = 63,427,435.15
  5. Step 5: Solve for x
    x = 63,427,435.15/9,191.94
  6. Step 6: Final answer
    x = 6,900.33

Related Problems

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Half scale
Find fourth proportional to 18,383.88, 25,370.01 and 10,000.38
Double scale
Find fourth proportional to 9,192.94, 12,686.39 and 5,001.19
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.