Home / 10,427.45-14,390.07-5,711.43

Finding the Fourth Proportional to 10,427.45, 14,390.07 and 5,711.43

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Solution

The fourth proportional to 10,427.45, 14,390.07 and 5,711.43 is: 7,881.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.45 : 14,390.07 = 5,711.43 : x
  2. Step 2: Convert to fraction form
    10,427.45/14,390.07 = 5,711.43/x
  3. Step 3: Cross multiply
    10,427.45x = 14,390.07 × 5,711.43
  4. Step 4: Simplify right side
    10,427.45x = 82,187,877.50
  5. Step 5: Solve for x
    x = 82,187,877.50/10,427.45
  6. Step 6: Final answer
    x = 7,881.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.