Home / 13,374.28-20,082.14-12,782.76

Finding the Fourth Proportional to 13,374.28, 20,082.14 and 12,782.76

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Solution

The fourth proportional to 13,374.28, 20,082.14 and 12,782.76 is: 19,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.28 : 20,082.14 = 12,782.76 : x
  2. Step 2: Convert to fraction form
    13,374.28/20,082.14 = 12,782.76/x
  3. Step 3: Cross multiply
    13,374.28x = 20,082.14 × 12,782.76
  4. Step 4: Simplify right side
    13,374.28x = 256,705,175.91
  5. Step 5: Solve for x
    x = 256,705,175.91/13,374.28
  6. Step 6: Final answer
    x = 19,193.94

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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.