Home / 8,987.02-13,482.35-3,147.73

Finding the Fourth Proportional to 8,987.02, 13,482.35 and 3,147.73

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Solution

The fourth proportional to 8,987.02, 13,482.35 and 3,147.73 is: 4,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.02 : 13,482.35 = 3,147.73 : x
  2. Step 2: Convert to fraction form
    8,987.02/13,482.35 = 3,147.73/x
  3. Step 3: Cross multiply
    8,987.02x = 13,482.35 × 3,147.73
  4. Step 4: Simplify right side
    8,987.02x = 42,438,797.57
  5. Step 5: Solve for x
    x = 42,438,797.57/8,987.02
  6. Step 6: Final answer
    x = 4,722.23

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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.