Home / 17,191.20-23,715.36-11,527.20

Finding the Fourth Proportional to 17,191.20, 23,715.36 and 11,527.20

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Solution

The fourth proportional to 17,191.20, 23,715.36 and 11,527.20 is: 15,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,191.20 : 23,715.36 = 11,527.20 : x
  2. Step 2: Convert to fraction form
    17,191.20/23,715.36 = 11,527.20/x
  3. Step 3: Cross multiply
    17,191.20x = 23,715.36 × 11,527.20
  4. Step 4: Simplify right side
    17,191.20x = 273,371,697.79
  5. Step 5: Solve for x
    x = 273,371,697.79/17,191.20
  6. Step 6: Final answer
    x = 15,901.84

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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.