Home / 11,188.90-16,763.10-8,864.20

Finding the Fourth Proportional to 11,188.90, 16,763.10 and 8,864.20

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Solution

The fourth proportional to 11,188.90, 16,763.10 and 8,864.20 is: 13,280.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.90 : 16,763.10 = 8,864.20 : x
  2. Step 2: Convert to fraction form
    11,188.90/16,763.10 = 8,864.20/x
  3. Step 3: Cross multiply
    11,188.90x = 16,763.10 × 8,864.20
  4. Step 4: Simplify right side
    11,188.90x = 148,591,471.02
  5. Step 5: Solve for x
    x = 148,591,471.02/11,188.90
  6. Step 6: Final answer
    x = 13,280.26

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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.