Home / 10,129.01-13,977.70-5,529.61

Finding the Fourth Proportional to 10,129.01, 13,977.70 and 5,529.61

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Solution

The fourth proportional to 10,129.01, 13,977.70 and 5,529.61 is: 7,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.01 : 13,977.70 = 5,529.61 : x
  2. Step 2: Convert to fraction form
    10,129.01/13,977.70 = 5,529.61/x
  3. Step 3: Cross multiply
    10,129.01x = 13,977.70 × 5,529.61
  4. Step 4: Simplify right side
    10,129.01x = 77,291,229.70
  5. Step 5: Solve for x
    x = 77,291,229.70/10,129.01
  6. Step 6: Final answer
    x = 7,630.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.