Home / 10,252.40-15,382.44-5,318.96

Finding the Fourth Proportional to 10,252.40, 15,382.44 and 5,318.96

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Solution

The fourth proportional to 10,252.40, 15,382.44 and 5,318.96 is: 7,980.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.40 : 15,382.44 = 5,318.96 : x
  2. Step 2: Convert to fraction form
    10,252.40/15,382.44 = 5,318.96/x
  3. Step 3: Cross multiply
    10,252.40x = 15,382.44 × 5,318.96
  4. Step 4: Simplify right side
    10,252.40x = 81,818,506.15
  5. Step 5: Solve for x
    x = 81,818,506.15/10,252.40
  6. Step 6: Final answer
    x = 7,980.43

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1.5x scale

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.