Home / 16,489.20-22,756.68-9,416.16

Finding the Fourth Proportional to 16,489.20, 22,756.68 and 9,416.16

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Solution

The fourth proportional to 16,489.20, 22,756.68 and 9,416.16 is: 12,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.20 : 22,756.68 = 9,416.16 : x
  2. Step 2: Convert to fraction form
    16,489.20/22,756.68 = 9,416.16/x
  3. Step 3: Cross multiply
    16,489.20x = 22,756.68 × 9,416.16
  4. Step 4: Simplify right side
    16,489.20x = 214,280,539.95
  5. Step 5: Solve for x
    x = 214,280,539.95/16,489.20
  6. Step 6: Final answer
    x = 12,995.21

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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.