Home / 8,731.84-12,046.38-5,373.64

Finding the Fourth Proportional to 8,731.84, 12,046.38 and 5,373.64

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Solution

The fourth proportional to 8,731.84, 12,046.38 and 5,373.64 is: 7,413.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.84 : 12,046.38 = 5,373.64 : x
  2. Step 2: Convert to fraction form
    8,731.84/12,046.38 = 5,373.64/x
  3. Step 3: Cross multiply
    8,731.84x = 12,046.38 × 5,373.64
  4. Step 4: Simplify right side
    8,731.84x = 64,732,909.42
  5. Step 5: Solve for x
    x = 64,732,909.42/8,731.84
  6. Step 6: Final answer
    x = 7,413.43

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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.