Home / 10,343.46-15,515.01-2,947.98

Finding the Fourth Proportional to 10,343.46, 15,515.01 and 2,947.98

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Solution

The fourth proportional to 10,343.46, 15,515.01 and 2,947.98 is: 4,421.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.46 : 15,515.01 = 2,947.98 : x
  2. Step 2: Convert to fraction form
    10,343.46/15,515.01 = 2,947.98/x
  3. Step 3: Cross multiply
    10,343.46x = 15,515.01 × 2,947.98
  4. Step 4: Simplify right side
    10,343.46x = 45,737,939.18
  5. Step 5: Solve for x
    x = 45,737,939.18/10,343.46
  6. Step 6: Final answer
    x = 4,421.92

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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.