Home / 8,899.20-12,268.80-7,499.52

Finding the Fourth Proportional to 8,899.20, 12,268.80 and 7,499.52

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Solution

The fourth proportional to 8,899.20, 12,268.80 and 7,499.52 is: 10,339.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.20 : 12,268.80 = 7,499.52 : x
  2. Step 2: Convert to fraction form
    8,899.20/12,268.80 = 7,499.52/x
  3. Step 3: Cross multiply
    8,899.20x = 12,268.80 × 7,499.52
  4. Step 4: Simplify right side
    8,899.20x = 92,010,110.98
  5. Step 5: Solve for x
    x = 92,010,110.98/8,899.20
  6. Step 6: Final answer
    x = 10,339.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.