Home / 8,381.02-12,565.32-4,217.98

Finding the Fourth Proportional to 8,381.02, 12,565.32 and 4,217.98

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Solution

The fourth proportional to 8,381.02, 12,565.32 and 4,217.98 is: 6,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.02 : 12,565.32 = 4,217.98 : x
  2. Step 2: Convert to fraction form
    8,381.02/12,565.32 = 4,217.98/x
  3. Step 3: Cross multiply
    8,381.02x = 12,565.32 × 4,217.98
  4. Step 4: Simplify right side
    8,381.02x = 53,000,268.45
  5. Step 5: Solve for x
    x = 53,000,268.45/8,381.02
  6. Step 6: Final answer
    x = 6,323.84

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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.