Home / 13,104.93-18,085.13-7,136.92

Finding the Fourth Proportional to 13,104.93, 18,085.13 and 7,136.92

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Solution

The fourth proportional to 13,104.93, 18,085.13 and 7,136.92 is: 9,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.93 : 18,085.13 = 7,136.92 : x
  2. Step 2: Convert to fraction form
    13,104.93/18,085.13 = 7,136.92/x
  3. Step 3: Cross multiply
    13,104.93x = 18,085.13 × 7,136.92
  4. Step 4: Simplify right side
    13,104.93x = 129,072,126.00
  5. Step 5: Solve for x
    x = 129,072,126.00/13,104.93
  6. Step 6: Final answer
    x = 9,849.13

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Half scale
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Double scale
Find fourth proportional to 13,105.93, 18,086.51 and 7,137.92
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.