Home / 9,687.40-14,533.50-2,761.90

Finding the Fourth Proportional to 9,687.40, 14,533.50 and 2,761.90

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Solution

The fourth proportional to 9,687.40, 14,533.50 and 2,761.90 is: 4,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.40 : 14,533.50 = 2,761.90 : x
  2. Step 2: Convert to fraction form
    9,687.40/14,533.50 = 2,761.90/x
  3. Step 3: Cross multiply
    9,687.40x = 14,533.50 × 2,761.90
  4. Step 4: Simplify right side
    9,687.40x = 40,140,073.65
  5. Step 5: Solve for x
    x = 40,140,073.65/9,687.40
  6. Step 6: Final answer
    x = 4,143.53

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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.