Home / 10,209.14-15,312.22-3,187.52

Finding the Fourth Proportional to 10,209.14, 15,312.22 and 3,187.52

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Solution

The fourth proportional to 10,209.14, 15,312.22 and 3,187.52 is: 4,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.14 : 15,312.22 = 3,187.52 : x
  2. Step 2: Convert to fraction form
    10,209.14/15,312.22 = 3,187.52/x
  3. Step 3: Cross multiply
    10,209.14x = 15,312.22 × 3,187.52
  4. Step 4: Simplify right side
    10,209.14x = 48,808,007.49
  5. Step 5: Solve for x
    x = 48,808,007.49/10,209.14
  6. Step 6: Final answer
    x = 4,780.81

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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.