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Finding the Third Proportional to 7,431 and 15,387.38

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Solution

The third proportional to 7,431 and 15,387.38 is: 31,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431 : 15,387.38 = 15,387.38 : x
  2. Step 2: Convert to fraction form
    7,431/15,387.38 = 15,387.38/x
  3. Step 3: Cross multiply
    7,431x = 15,387.38 × 15,387.38
  4. Step 4: Simplify right side
    7,431x = 236,771,309.39
  5. Step 5: Solve for x
    x = 236,771,309.39/7,431
  6. Step 6: Final answer
    x = 31,862.64

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.