Home / 7,400.76-10,215.09-4,418.61

Finding the Fourth Proportional to 7,400.76, 10,215.09 and 4,418.61

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Solution

The fourth proportional to 7,400.76, 10,215.09 and 4,418.61 is: 6,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.76 : 10,215.09 = 4,418.61 : x
  2. Step 2: Convert to fraction form
    7,400.76/10,215.09 = 4,418.61/x
  3. Step 3: Cross multiply
    7,400.76x = 10,215.09 × 4,418.61
  4. Step 4: Simplify right side
    7,400.76x = 45,136,498.82
  5. Step 5: Solve for x
    x = 45,136,498.82/7,400.76
  6. Step 6: Final answer
    x = 6,098.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.