Home / 10,270.32-15,405.45-2,479.11

Finding the Fourth Proportional to 10,270.32, 15,405.45 and 2,479.11

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Solution

The fourth proportional to 10,270.32, 15,405.45 and 2,479.11 is: 3,718.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,270.32 : 15,405.45 = 2,479.11 : x
  2. Step 2: Convert to fraction form
    10,270.32/15,405.45 = 2,479.11/x
  3. Step 3: Cross multiply
    10,270.32x = 15,405.45 × 2,479.11
  4. Step 4: Simplify right side
    10,270.32x = 38,191,805.15
  5. Step 5: Solve for x
    x = 38,191,805.15/10,270.32
  6. Step 6: Final answer
    x = 3,718.66

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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.