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Finding the Fourth Proportional to 15,998.18, 22,078.10 and 8,925.98

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Solution

The fourth proportional to 15,998.18, 22,078.10 and 8,925.98 is: 12,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,998.18 : 22,078.10 = 8,925.98 : x
  2. Step 2: Convert to fraction form
    15,998.18/22,078.10 = 8,925.98/x
  3. Step 3: Cross multiply
    15,998.18x = 22,078.10 × 8,925.98
  4. Step 4: Simplify right side
    15,998.18x = 197,068,634.41
  5. Step 5: Solve for x
    x = 197,068,634.41/15,998.18
  6. Step 6: Final answer
    x = 12,318.19

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Half scale
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Double scale
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Similar ratio
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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.