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Finding the Fourth Proportional to 8,436.10, 12,651.03 and 4,927.30

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Solution

The fourth proportional to 8,436.10, 12,651.03 and 4,927.30 is: 7,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436.10 : 12,651.03 = 4,927.30 : x
  2. Step 2: Convert to fraction form
    8,436.10/12,651.03 = 4,927.30/x
  3. Step 3: Cross multiply
    8,436.10x = 12,651.03 × 4,927.30
  4. Step 4: Simplify right side
    8,436.10x = 62,335,420.12
  5. Step 5: Solve for x
    x = 62,335,420.12/8,436.10
  6. Step 6: Final answer
    x = 7,389.13

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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.