Home / 11,188.29-15,423.94-8,899.57

Finding the Fourth Proportional to 11,188.29, 15,423.94 and 8,899.57

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Solution

The fourth proportional to 11,188.29, 15,423.94 and 8,899.57 is: 12,268.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.29 : 15,423.94 = 8,899.57 : x
  2. Step 2: Convert to fraction form
    11,188.29/15,423.94 = 8,899.57/x
  3. Step 3: Cross multiply
    11,188.29x = 15,423.94 × 8,899.57
  4. Step 4: Simplify right side
    11,188.29x = 137,266,464.11
  5. Step 5: Solve for x
    x = 137,266,464.11/11,188.29
  6. Step 6: Final answer
    x = 12,268.76

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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.