Home / 8,872.80-12,248.40-5,730.52

Finding the Fourth Proportional to 8,872.80, 12,248.40 and 5,730.52

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Solution

The fourth proportional to 8,872.80, 12,248.40 and 5,730.52 is: 7,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.80 : 12,248.40 = 5,730.52 : x
  2. Step 2: Convert to fraction form
    8,872.80/12,248.40 = 5,730.52/x
  3. Step 3: Cross multiply
    8,872.80x = 12,248.40 × 5,730.52
  4. Step 4: Simplify right side
    8,872.80x = 70,189,701.17
  5. Step 5: Solve for x
    x = 70,189,701.17/8,872.80
  6. Step 6: Final answer
    x = 7,910.66

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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.