Home / 7,988.67-11,023.95-4,452.21

Finding the Fourth Proportional to 7,988.67, 11,023.95 and 4,452.21

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Solution

The fourth proportional to 7,988.67, 11,023.95 and 4,452.21 is: 6,143.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.67 : 11,023.95 = 4,452.21 : x
  2. Step 2: Convert to fraction form
    7,988.67/11,023.95 = 4,452.21/x
  3. Step 3: Cross multiply
    7,988.67x = 11,023.95 × 4,452.21
  4. Step 4: Simplify right side
    7,988.67x = 49,080,940.43
  5. Step 5: Solve for x
    x = 49,080,940.43/7,988.67
  6. Step 6: Final answer
    x = 6,143.82

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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.