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Finding the Fourth Proportional to 8,437.44, 12,647.16 and 4,280.52

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Solution

The fourth proportional to 8,437.44, 12,647.16 and 4,280.52 is: 6,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,437.44 : 12,647.16 = 4,280.52 : x
  2. Step 2: Convert to fraction form
    8,437.44/12,647.16 = 4,280.52/x
  3. Step 3: Cross multiply
    8,437.44x = 12,647.16 × 4,280.52
  4. Step 4: Simplify right side
    8,437.44x = 54,136,421.32
  5. Step 5: Solve for x
    x = 54,136,421.32/8,437.44
  6. Step 6: Final answer
    x = 6,416.21

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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.