Home / 16,652.12-22,981.26-9,939.80

Finding the Fourth Proportional to 16,652.12, 22,981.26 and 9,939.80

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Solution

The fourth proportional to 16,652.12, 22,981.26 and 9,939.80 is: 13,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,652.12 : 22,981.26 = 9,939.80 : x
  2. Step 2: Convert to fraction form
    16,652.12/22,981.26 = 9,939.80/x
  3. Step 3: Cross multiply
    16,652.12x = 22,981.26 × 9,939.80
  4. Step 4: Simplify right side
    16,652.12x = 228,429,128.15
  5. Step 5: Solve for x
    x = 228,429,128.15/16,652.12
  6. Step 6: Final answer
    x = 13,717.72

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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.