Home / 8,391.48-12,577.44-4,498.68

Finding the Fourth Proportional to 8,391.48, 12,577.44 and 4,498.68

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Solution

The fourth proportional to 8,391.48, 12,577.44 and 4,498.68 is: 6,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.48 : 12,577.44 = 4,498.68 : x
  2. Step 2: Convert to fraction form
    8,391.48/12,577.44 = 4,498.68/x
  3. Step 3: Cross multiply
    8,391.48x = 12,577.44 × 4,498.68
  4. Step 4: Simplify right side
    8,391.48x = 56,581,877.78
  5. Step 5: Solve for x
    x = 56,581,877.78/8,391.48
  6. Step 6: Final answer
    x = 6,742.78

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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.