Home / 7,987.62-11,023.47-4,451.52

Finding the Fourth Proportional to 7,987.62, 11,023.47 and 4,451.52

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Solution

The fourth proportional to 7,987.62, 11,023.47 and 4,451.52 is: 6,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.62 : 11,023.47 = 4,451.52 : x
  2. Step 2: Convert to fraction form
    7,987.62/11,023.47 = 4,451.52/x
  3. Step 3: Cross multiply
    7,987.62x = 11,023.47 × 4,451.52
  4. Step 4: Simplify right side
    7,987.62x = 49,071,197.17
  5. Step 5: Solve for x
    x = 49,071,197.17/7,987.62
  6. Step 6: Final answer
    x = 6,143.41

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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.