Home / 15,929.79-21,974.82-9,553.31

Finding the Fourth Proportional to 15,929.79, 21,974.82 and 9,553.31

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Solution

The fourth proportional to 15,929.79, 21,974.82 and 9,553.31 is: 13,178.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,929.79 : 21,974.82 = 9,553.31 : x
  2. Step 2: Convert to fraction form
    15,929.79/21,974.82 = 9,553.31/x
  3. Step 3: Cross multiply
    15,929.79x = 21,974.82 × 9,553.31
  4. Step 4: Simplify right side
    15,929.79x = 209,932,381.71
  5. Step 5: Solve for x
    x = 209,932,381.71/15,929.79
  6. Step 6: Final answer
    x = 13,178.61

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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.