Home / 16,279.04-22,469.20-9,905.68

Finding the Fourth Proportional to 16,279.04, 22,469.20 and 9,905.68

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Solution

The fourth proportional to 16,279.04, 22,469.20 and 9,905.68 is: 13,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,279.04 : 22,469.20 = 9,905.68 : x
  2. Step 2: Convert to fraction form
    16,279.04/22,469.20 = 9,905.68/x
  3. Step 3: Cross multiply
    16,279.04x = 22,469.20 × 9,905.68
  4. Step 4: Simplify right side
    16,279.04x = 222,572,705.06
  5. Step 5: Solve for x
    x = 222,572,705.06/16,279.04
  6. Step 6: Final answer
    x = 13,672.35

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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.