Home / 16,981.20-23,432.93-9,427.16

Finding the Fourth Proportional to 16,981.20, 23,432.93 and 9,427.16

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Solution

The fourth proportional to 16,981.20, 23,432.93 and 9,427.16 is: 13,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.20 : 23,432.93 = 9,427.16 : x
  2. Step 2: Convert to fraction form
    16,981.20/23,432.93 = 9,427.16/x
  3. Step 3: Cross multiply
    16,981.20x = 23,432.93 × 9,427.16
  4. Step 4: Simplify right side
    16,981.20x = 220,906,027.18
  5. Step 5: Solve for x
    x = 220,906,027.18/16,981.20
  6. Step 6: Final answer
    x = 13,008.86

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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.