Home / 13,460.42-20,191.37-5,141.12

Finding the Fourth Proportional to 13,460.42, 20,191.37 and 5,141.12

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Solution

The fourth proportional to 13,460.42, 20,191.37 and 5,141.12 is: 7,711.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.42 : 20,191.37 = 5,141.12 : x
  2. Step 2: Convert to fraction form
    13,460.42/20,191.37 = 5,141.12/x
  3. Step 3: Cross multiply
    13,460.42x = 20,191.37 × 5,141.12
  4. Step 4: Simplify right side
    13,460.42x = 103,806,129.47
  5. Step 5: Solve for x
    x = 103,806,129.47/13,460.42
  6. Step 6: Final answer
    x = 7,711.96

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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.