Home / 12,515.06-17,270.10-7,136.71

Finding the Fourth Proportional to 12,515.06, 17,270.10 and 7,136.71

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Solution

The fourth proportional to 12,515.06, 17,270.10 and 7,136.71 is: 9,848.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.06 : 17,270.10 = 7,136.71 : x
  2. Step 2: Convert to fraction form
    12,515.06/17,270.10 = 7,136.71/x
  3. Step 3: Cross multiply
    12,515.06x = 17,270.10 × 7,136.71
  4. Step 4: Simplify right side
    12,515.06x = 123,251,609.02
  5. Step 5: Solve for x
    x = 123,251,609.02/12,515.06
  6. Step 6: Final answer
    x = 9,848.26

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Double scale
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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.