Home / 7,987.83-11,023.20-4,451.16

Finding the Fourth Proportional to 7,987.83, 11,023.20 and 4,451.16

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Solution

The fourth proportional to 7,987.83, 11,023.20 and 4,451.16 is: 6,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.83 : 11,023.20 = 4,451.16 : x
  2. Step 2: Convert to fraction form
    7,987.83/11,023.20 = 4,451.16/x
  3. Step 3: Cross multiply
    7,987.83x = 11,023.20 × 4,451.16
  4. Step 4: Simplify right side
    7,987.83x = 49,066,026.91
  5. Step 5: Solve for x
    x = 49,066,026.91/7,987.83
  6. Step 6: Final answer
    x = 6,142.60

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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.