Home / 13,717.35-18,929.79-7,429.68

Finding the Fourth Proportional to 13,717.35, 18,929.79 and 7,429.68

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Solution

The fourth proportional to 13,717.35, 18,929.79 and 7,429.68 is: 10,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.35 : 18,929.79 = 7,429.68 : x
  2. Step 2: Convert to fraction form
    13,717.35/18,929.79 = 7,429.68/x
  3. Step 3: Cross multiply
    13,717.35x = 18,929.79 × 7,429.68
  4. Step 4: Simplify right side
    13,717.35x = 140,642,282.17
  5. Step 5: Solve for x
    x = 140,642,282.17/13,717.35
  6. Step 6: Final answer
    x = 10,252.88

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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.