Home / 9,113.31-13,666.11-2,871.65

Finding the Fourth Proportional to 9,113.31, 13,666.11 and 2,871.65

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Solution

The fourth proportional to 9,113.31, 13,666.11 and 2,871.65 is: 4,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.31 : 13,666.11 = 2,871.65 : x
  2. Step 2: Convert to fraction form
    9,113.31/13,666.11 = 2,871.65/x
  3. Step 3: Cross multiply
    9,113.31x = 13,666.11 × 2,871.65
  4. Step 4: Simplify right side
    9,113.31x = 39,244,216.45
  5. Step 5: Solve for x
    x = 39,244,216.45/9,113.31
  6. Step 6: Final answer
    x = 4,306.25

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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.