Home / 10,470.51-15,708.69-4,234.90

Finding the Fourth Proportional to 10,470.51, 15,708.69 and 4,234.90

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Solution

The fourth proportional to 10,470.51, 15,708.69 and 4,234.90 is: 6,353.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.51 : 15,708.69 = 4,234.90 : x
  2. Step 2: Convert to fraction form
    10,470.51/15,708.69 = 4,234.90/x
  3. Step 3: Cross multiply
    10,470.51x = 15,708.69 × 4,234.90
  4. Step 4: Simplify right side
    10,470.51x = 66,524,731.28
  5. Step 5: Solve for x
    x = 66,524,731.28/10,470.51
  6. Step 6: Final answer
    x = 6,353.53

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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.