Home / 13,519.76-20,278.22-6,402.29

Finding the Fourth Proportional to 13,519.76, 20,278.22 and 6,402.29

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Solution

The fourth proportional to 13,519.76, 20,278.22 and 6,402.29 is: 9,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.76 : 20,278.22 = 6,402.29 : x
  2. Step 2: Convert to fraction form
    13,519.76/20,278.22 = 6,402.29/x
  3. Step 3: Cross multiply
    13,519.76x = 20,278.22 × 6,402.29
  4. Step 4: Simplify right side
    13,519.76x = 129,826,911.72
  5. Step 5: Solve for x
    x = 129,826,911.72/13,519.76
  6. Step 6: Final answer
    x = 9,602.76

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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.