Home / 11,186.60-16,779.90-7,500.20

Finding the Fourth Proportional to 11,186.60, 16,779.90 and 7,500.20

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Solution

The fourth proportional to 11,186.60, 16,779.90 and 7,500.20 is: 11,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.60 : 16,779.90 = 7,500.20 : x
  2. Step 2: Convert to fraction form
    11,186.60/16,779.90 = 7,500.20/x
  3. Step 3: Cross multiply
    11,186.60x = 16,779.90 × 7,500.20
  4. Step 4: Simplify right side
    11,186.60x = 125,852,605.98
  5. Step 5: Solve for x
    x = 125,852,605.98/11,186.60
  6. Step 6: Final answer
    x = 11,250.30

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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.