Home / 8,646.89-12,964.40-3,100.11

Finding the Fourth Proportional to 8,646.89, 12,964.40 and 3,100.11

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Solution

The fourth proportional to 8,646.89, 12,964.40 and 3,100.11 is: 4,648.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.89 : 12,964.40 = 3,100.11 : x
  2. Step 2: Convert to fraction form
    8,646.89/12,964.40 = 3,100.11/x
  3. Step 3: Cross multiply
    8,646.89x = 12,964.40 × 3,100.11
  4. Step 4: Simplify right side
    8,646.89x = 40,191,031.03
  5. Step 5: Solve for x
    x = 40,191,031.03/8,646.89
  6. Step 6: Final answer
    x = 4,648.04

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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.