Home / 15,869.52-21,895.92-9,580.68

Finding the Fourth Proportional to 15,869.52, 21,895.92 and 9,580.68

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Solution

The fourth proportional to 15,869.52, 21,895.92 and 9,580.68 is: 13,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.52 : 21,895.92 = 9,580.68 : x
  2. Step 2: Convert to fraction form
    15,869.52/21,895.92 = 9,580.68/x
  3. Step 3: Cross multiply
    15,869.52x = 21,895.92 × 9,580.68
  4. Step 4: Simplify right side
    15,869.52x = 209,777,802.83
  5. Step 5: Solve for x
    x = 209,777,802.83/15,869.52
  6. Step 6: Final answer
    x = 13,218.91

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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.