Home / 10,209.55-15,306.63-5,212.66

Finding the Fourth Proportional to 10,209.55, 15,306.63 and 5,212.66

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Solution

The fourth proportional to 10,209.55, 15,306.63 and 5,212.66 is: 7,815.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,209.55 : 15,306.63 = 5,212.66 : x
  2. Step 2: Convert to fraction form
    10,209.55/15,306.63 = 5,212.66/x
  3. Step 3: Cross multiply
    10,209.55x = 15,306.63 × 5,212.66
  4. Step 4: Simplify right side
    10,209.55x = 79,788,257.94
  5. Step 5: Solve for x
    x = 79,788,257.94/10,209.55
  6. Step 6: Final answer
    x = 7,815.06

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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.