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Finding the Fourth Proportional to 12,602.92, 18,908.62 and 5,581.96

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Solution

The fourth proportional to 12,602.92, 18,908.62 and 5,581.96 is: 8,374.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.92 : 18,908.62 = 5,581.96 : x
  2. Step 2: Convert to fraction form
    12,602.92/18,908.62 = 5,581.96/x
  3. Step 3: Cross multiply
    12,602.92x = 18,908.62 × 5,581.96
  4. Step 4: Simplify right side
    12,602.92x = 105,547,160.50
  5. Step 5: Solve for x
    x = 105,547,160.50/12,602.92
  6. Step 6: Final answer
    x = 8,374.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.