Home / 7,618.97-11,421.28-2,685.47

Finding the Fourth Proportional to 7,618.97, 11,421.28 and 2,685.47

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Solution

The fourth proportional to 7,618.97, 11,421.28 and 2,685.47 is: 4,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.97 : 11,421.28 = 2,685.47 : x
  2. Step 2: Convert to fraction form
    7,618.97/11,421.28 = 2,685.47/x
  3. Step 3: Cross multiply
    7,618.97x = 11,421.28 × 2,685.47
  4. Step 4: Simplify right side
    7,618.97x = 30,671,504.80
  5. Step 5: Solve for x
    x = 30,671,504.80/7,618.97
  6. Step 6: Final answer
    x = 4,025.68

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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.