Home / 7,934.80-11,929.20-6,484.48

Finding the Fourth Proportional to 7,934.80, 11,929.20 and 6,484.48

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Solution

The fourth proportional to 7,934.80, 11,929.20 and 6,484.48 is: 9,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.80 : 11,929.20 = 6,484.48 : x
  2. Step 2: Convert to fraction form
    7,934.80/11,929.20 = 6,484.48/x
  3. Step 3: Cross multiply
    7,934.80x = 11,929.20 × 6,484.48
  4. Step 4: Simplify right side
    7,934.80x = 77,354,658.82
  5. Step 5: Solve for x
    x = 77,354,658.82/7,934.80
  6. Step 6: Final answer
    x = 9,748.78

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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.