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Finding the Fourth Proportional to 16,155.60, 22,295.16 and 9,081.60

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Solution

The fourth proportional to 16,155.60, 22,295.16 and 9,081.60 is: 12,532.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,155.60 : 22,295.16 = 9,081.60 : x
  2. Step 2: Convert to fraction form
    16,155.60/22,295.16 = 9,081.60/x
  3. Step 3: Cross multiply
    16,155.60x = 22,295.16 × 9,081.60
  4. Step 4: Simplify right side
    16,155.60x = 202,475,725.06
  5. Step 5: Solve for x
    x = 202,475,725.06/16,155.60
  6. Step 6: Final answer
    x = 12,532.85

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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.