Home / 8,856.60-13,280.68-5,159.90

Finding the Fourth Proportional to 8,856.60, 13,280.68 and 5,159.90

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Solution

The fourth proportional to 8,856.60, 13,280.68 and 5,159.90 is: 7,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.60 : 13,280.68 = 5,159.90 : x
  2. Step 2: Convert to fraction form
    8,856.60/13,280.68 = 5,159.90/x
  3. Step 3: Cross multiply
    8,856.60x = 13,280.68 × 5,159.90
  4. Step 4: Simplify right side
    8,856.60x = 68,526,980.73
  5. Step 5: Solve for x
    x = 68,526,980.73/8,856.60
  6. Step 6: Final answer
    x = 7,737.39

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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.