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Finding the Fourth Proportional to 8,732.71, 13,031.97 and 7,798.51

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Solution

The fourth proportional to 8,732.71, 13,031.97 and 7,798.51 is: 11,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,732.71 : 13,031.97 = 7,798.51 : x
  2. Step 2: Convert to fraction form
    8,732.71/13,031.97 = 7,798.51/x
  3. Step 3: Cross multiply
    8,732.71x = 13,031.97 × 7,798.51
  4. Step 4: Simplify right side
    8,732.71x = 101,629,948.36
  5. Step 5: Solve for x
    x = 101,629,948.36/8,732.71
  6. Step 6: Final answer
    x = 11,637.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.