Home / 8,728.55-13,087.60-5,920.83

Finding the Fourth Proportional to 8,728.55, 13,087.60 and 5,920.83

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Solution

The fourth proportional to 8,728.55, 13,087.60 and 5,920.83 is: 8,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.55 : 13,087.60 = 5,920.83 : x
  2. Step 2: Convert to fraction form
    8,728.55/13,087.60 = 5,920.83/x
  3. Step 3: Cross multiply
    8,728.55x = 13,087.60 × 5,920.83
  4. Step 4: Simplify right side
    8,728.55x = 77,489,454.71
  5. Step 5: Solve for x
    x = 77,489,454.71/8,728.55
  6. Step 6: Final answer
    x = 8,877.70

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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.