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Finding the Fourth Proportional to 15,990.62, 22,068.05 and 9,277.74

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Solution

The fourth proportional to 15,990.62, 22,068.05 and 9,277.74 is: 12,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.62 : 22,068.05 = 9,277.74 : x
  2. Step 2: Convert to fraction form
    15,990.62/22,068.05 = 9,277.74/x
  3. Step 3: Cross multiply
    15,990.62x = 22,068.05 × 9,277.74
  4. Step 4: Simplify right side
    15,990.62x = 204,741,583.82
  5. Step 5: Solve for x
    x = 204,741,583.82/15,990.62
  6. Step 6: Final answer
    x = 12,803.86

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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.