Home / 10,434.50-15,651.74-2,643.92

Finding the Fourth Proportional to 10,434.50, 15,651.74 and 2,643.92

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Solution

The fourth proportional to 10,434.50, 15,651.74 and 2,643.92 is: 3,965.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434.50 : 15,651.74 = 2,643.92 : x
  2. Step 2: Convert to fraction form
    10,434.50/15,651.74 = 2,643.92/x
  3. Step 3: Cross multiply
    10,434.50x = 15,651.74 × 2,643.92
  4. Step 4: Simplify right side
    10,434.50x = 41,381,935.20
  5. Step 5: Solve for x
    x = 41,381,935.20/10,434.50
  6. Step 6: Final answer
    x = 3,965.88

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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.