Home / 8,565.20-12,828.60-4,456.40

Finding the Fourth Proportional to 8,565.20, 12,828.60 and 4,456.40

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Solution

The fourth proportional to 8,565.20, 12,828.60 and 4,456.40 is: 6,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,565.20 : 12,828.60 = 4,456.40 : x
  2. Step 2: Convert to fraction form
    8,565.20/12,828.60 = 4,456.40/x
  3. Step 3: Cross multiply
    8,565.20x = 12,828.60 × 4,456.40
  4. Step 4: Simplify right side
    8,565.20x = 57,169,373.04
  5. Step 5: Solve for x
    x = 57,169,373.04/8,565.20
  6. Step 6: Final answer
    x = 6,674.61

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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.