Home / 13,292.28-18,338.11-11,613.75

Finding the Fourth Proportional to 13,292.28, 18,338.11 and 11,613.75

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Solution

The fourth proportional to 13,292.28, 18,338.11 and 11,613.75 is: 16,022.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.28 : 18,338.11 = 11,613.75 : x
  2. Step 2: Convert to fraction form
    13,292.28/18,338.11 = 11,613.75/x
  3. Step 3: Cross multiply
    13,292.28x = 18,338.11 × 11,613.75
  4. Step 4: Simplify right side
    13,292.28x = 212,974,225.01
  5. Step 5: Solve for x
    x = 212,974,225.01/13,292.28
  6. Step 6: Final answer
    x = 16,022.40

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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.