Home / 13,829.68-20,753.20-7,260.56

Finding the Fourth Proportional to 13,829.68, 20,753.20 and 7,260.56

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Solution

The fourth proportional to 13,829.68, 20,753.20 and 7,260.56 is: 10,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.68 : 20,753.20 = 7,260.56 : x
  2. Step 2: Convert to fraction form
    13,829.68/20,753.20 = 7,260.56/x
  3. Step 3: Cross multiply
    13,829.68x = 20,753.20 × 7,260.56
  4. Step 4: Simplify right side
    13,829.68x = 150,679,853.79
  5. Step 5: Solve for x
    x = 150,679,853.79/13,829.68
  6. Step 6: Final answer
    x = 10,895.40

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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.