Home / 8,985.30-13,449.15-4,815.06

Finding the Fourth Proportional to 8,985.30, 13,449.15 and 4,815.06

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Solution

The fourth proportional to 8,985.30, 13,449.15 and 4,815.06 is: 7,207.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.30 : 13,449.15 = 4,815.06 : x
  2. Step 2: Convert to fraction form
    8,985.30/13,449.15 = 4,815.06/x
  3. Step 3: Cross multiply
    8,985.30x = 13,449.15 × 4,815.06
  4. Step 4: Simplify right side
    8,985.30x = 64,758,464.20
  5. Step 5: Solve for x
    x = 64,758,464.20/8,985.30
  6. Step 6: Final answer
    x = 7,207.16

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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.