Home / 13,778.46-20,634.84-7,529.10

Finding the Fourth Proportional to 13,778.46, 20,634.84 and 7,529.10

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Solution

The fourth proportional to 13,778.46, 20,634.84 and 7,529.10 is: 11,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.46 : 20,634.84 = 7,529.10 : x
  2. Step 2: Convert to fraction form
    13,778.46/20,634.84 = 7,529.10/x
  3. Step 3: Cross multiply
    13,778.46x = 20,634.84 × 7,529.10
  4. Step 4: Simplify right side
    13,778.46x = 155,361,773.84
  5. Step 5: Solve for x
    x = 155,361,773.84/13,778.46
  6. Step 6: Final answer
    x = 11,275.70

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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.