Home / 10,529.38-15,780.41-4,282.12

Finding the Fourth Proportional to 10,529.38, 15,780.41 and 4,282.12

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Solution

The fourth proportional to 10,529.38, 15,780.41 and 4,282.12 is: 6,417.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.38 : 15,780.41 = 4,282.12 : x
  2. Step 2: Convert to fraction form
    10,529.38/15,780.41 = 4,282.12/x
  3. Step 3: Cross multiply
    10,529.38x = 15,780.41 × 4,282.12
  4. Step 4: Simplify right side
    10,529.38x = 67,573,623.64
  5. Step 5: Solve for x
    x = 67,573,623.64/10,529.38
  6. Step 6: Final answer
    x = 6,417.63

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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.