Home / 8,987.28-13,482.84-3,144.08

Finding the Fourth Proportional to 8,987.28, 13,482.84 and 3,144.08

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Solution

The fourth proportional to 8,987.28, 13,482.84 and 3,144.08 is: 4,716.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.28 : 13,482.84 = 3,144.08 : x
  2. Step 2: Convert to fraction form
    8,987.28/13,482.84 = 3,144.08/x
  3. Step 3: Cross multiply
    8,987.28x = 13,482.84 × 3,144.08
  4. Step 4: Simplify right side
    8,987.28x = 42,391,127.59
  5. Step 5: Solve for x
    x = 42,391,127.59/8,987.28
  6. Step 6: Final answer
    x = 4,716.79

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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.