Home / 10,266.31-15,399.87-2,871.46

Finding the Fourth Proportional to 10,266.31, 15,399.87 and 2,871.46

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Solution

The fourth proportional to 10,266.31, 15,399.87 and 2,871.46 is: 4,307.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,266.31 : 15,399.87 = 2,871.46 : x
  2. Step 2: Convert to fraction form
    10,266.31/15,399.87 = 2,871.46/x
  3. Step 3: Cross multiply
    10,266.31x = 15,399.87 × 2,871.46
  4. Step 4: Simplify right side
    10,266.31x = 44,220,110.71
  5. Step 5: Solve for x
    x = 44,220,110.71/10,266.31
  6. Step 6: Final answer
    x = 4,307.30

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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.