Home / 12,510.05-18,763.65-3,742.88

Finding the Fourth Proportional to 12,510.05, 18,763.65 and 3,742.88

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Solution

The fourth proportional to 12,510.05, 18,763.65 and 3,742.88 is: 5,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,510.05 : 18,763.65 = 3,742.88 : x
  2. Step 2: Convert to fraction form
    12,510.05/18,763.65 = 3,742.88/x
  3. Step 3: Cross multiply
    12,510.05x = 18,763.65 × 3,742.88
  4. Step 4: Simplify right side
    12,510.05x = 70,229,996.49
  5. Step 5: Solve for x
    x = 70,229,996.49/12,510.05
  6. Step 6: Final answer
    x = 5,613.89

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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.