Home / 16,191.40-22,342.52-9,117.68

Finding the Fourth Proportional to 16,191.40, 22,342.52 and 9,117.68

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Solution

The fourth proportional to 16,191.40, 22,342.52 and 9,117.68 is: 12,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,191.40 : 22,342.52 = 9,117.68 : x
  2. Step 2: Convert to fraction form
    16,191.40/22,342.52 = 9,117.68/x
  3. Step 3: Cross multiply
    16,191.40x = 22,342.52 × 9,117.68
  4. Step 4: Simplify right side
    16,191.40x = 203,711,947.75
  5. Step 5: Solve for x
    x = 203,711,947.75/16,191.40
  6. Step 6: Final answer
    x = 12,581.49

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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.