Home / 12,707.38-17,536.20-7,042.14

Finding the Fourth Proportional to 12,707.38, 17,536.20 and 7,042.14

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Solution

The fourth proportional to 12,707.38, 17,536.20 and 7,042.14 is: 9,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.38 : 17,536.20 = 7,042.14 : x
  2. Step 2: Convert to fraction form
    12,707.38/17,536.20 = 7,042.14/x
  3. Step 3: Cross multiply
    12,707.38x = 17,536.20 × 7,042.14
  4. Step 4: Simplify right side
    12,707.38x = 123,492,349.06
  5. Step 5: Solve for x
    x = 123,492,349.06/12,707.38
  6. Step 6: Final answer
    x = 9,718.16

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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.