Home / 8,468.40-11,686.48-4,691.68

Finding the Fourth Proportional to 8,468.40, 11,686.48 and 4,691.68

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Solution

The fourth proportional to 8,468.40, 11,686.48 and 4,691.68 is: 6,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.40 : 11,686.48 = 4,691.68 : x
  2. Step 2: Convert to fraction form
    8,468.40/11,686.48 = 4,691.68/x
  3. Step 3: Cross multiply
    8,468.40x = 11,686.48 × 4,691.68
  4. Step 4: Simplify right side
    8,468.40x = 54,829,224.49
  5. Step 5: Solve for x
    x = 54,829,224.49/8,468.40
  6. Step 6: Final answer
    x = 6,474.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.