Home / 10,426.97-15,643.38-4,191.36

Finding the Fourth Proportional to 10,426.97, 15,643.38 and 4,191.36

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Solution

The fourth proportional to 10,426.97, 15,643.38 and 4,191.36 is: 6,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,426.97 : 15,643.38 = 4,191.36 : x
  2. Step 2: Convert to fraction form
    10,426.97/15,643.38 = 4,191.36/x
  3. Step 3: Cross multiply
    10,426.97x = 15,643.38 × 4,191.36
  4. Step 4: Simplify right side
    10,426.97x = 65,567,037.20
  5. Step 5: Solve for x
    x = 65,567,037.20/10,426.97
  6. Step 6: Final answer
    x = 6,288.22

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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.