Home / 8,987.40-13,482.54-3,142.44

Finding the Fourth Proportional to 8,987.40, 13,482.54 and 3,142.44

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Solution

The fourth proportional to 8,987.40, 13,482.54 and 3,142.44 is: 4,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.40 : 13,482.54 = 3,142.44 : x
  2. Step 2: Convert to fraction form
    8,987.40/13,482.54 = 3,142.44/x
  3. Step 3: Cross multiply
    8,987.40x = 13,482.54 × 3,142.44
  4. Step 4: Simplify right side
    8,987.40x = 42,368,073.00
  5. Step 5: Solve for x
    x = 42,368,073.00/8,987.40
  6. Step 6: Final answer
    x = 4,714.16

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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.