Home / 8,716.12-12,026.68-5,180.20

Finding the Fourth Proportional to 8,716.12, 12,026.68 and 5,180.20

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Solution

The fourth proportional to 8,716.12, 12,026.68 and 5,180.20 is: 7,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.12 : 12,026.68 = 5,180.20 : x
  2. Step 2: Convert to fraction form
    8,716.12/12,026.68 = 5,180.20/x
  3. Step 3: Cross multiply
    8,716.12x = 12,026.68 × 5,180.20
  4. Step 4: Simplify right side
    8,716.12x = 62,300,607.74
  5. Step 5: Solve for x
    x = 62,300,607.74/8,716.12
  6. Step 6: Final answer
    x = 7,147.75

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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.