Home / 17,529.15-26,304.72-7,140.90

Finding the Fourth Proportional to 17,529.15, 26,304.72 and 7,140.90

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Solution

The fourth proportional to 17,529.15, 26,304.72 and 7,140.90 is: 10,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,529.15 : 26,304.72 = 7,140.90 : x
  2. Step 2: Convert to fraction form
    17,529.15/26,304.72 = 7,140.90/x
  3. Step 3: Cross multiply
    17,529.15x = 26,304.72 × 7,140.90
  4. Step 4: Simplify right side
    17,529.15x = 187,839,375.05
  5. Step 5: Solve for x
    x = 187,839,375.05/17,529.15
  6. Step 6: Final answer
    x = 10,715.83

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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.