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Finding the Fourth Proportional to 8,345.87, 12,522.30 and 3,663.47

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Solution

The fourth proportional to 8,345.87, 12,522.30 and 3,663.47 is: 5,496.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.87 : 12,522.30 = 3,663.47 : x
  2. Step 2: Convert to fraction form
    8,345.87/12,522.30 = 3,663.47/x
  3. Step 3: Cross multiply
    8,345.87x = 12,522.30 × 3,663.47
  4. Step 4: Simplify right side
    8,345.87x = 45,875,070.38
  5. Step 5: Solve for x
    x = 45,875,070.38/8,345.87
  6. Step 6: Final answer
    x = 5,496.74

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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.