Home / 7,842.30-11,764.26-4,148.70

Finding the Fourth Proportional to 7,842.30, 11,764.26 and 4,148.70

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Solution

The fourth proportional to 7,842.30, 11,764.26 and 4,148.70 is: 6,223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.30 : 11,764.26 = 4,148.70 : x
  2. Step 2: Convert to fraction form
    7,842.30/11,764.26 = 4,148.70/x
  3. Step 3: Cross multiply
    7,842.30x = 11,764.26 × 4,148.70
  4. Step 4: Simplify right side
    7,842.30x = 48,806,385.46
  5. Step 5: Solve for x
    x = 48,806,385.46/7,842.30
  6. Step 6: Final answer
    x = 6,223.48

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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.