Home / 25,745.04-38,615.13-8,211.78

Finding the Fourth Proportional to 25,745.04, 38,615.13 and 8,211.78

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Solution

The fourth proportional to 25,745.04, 38,615.13 and 8,211.78 is: 12,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,745.04 : 38,615.13 = 8,211.78 : x
  2. Step 2: Convert to fraction form
    25,745.04/38,615.13 = 8,211.78/x
  3. Step 3: Cross multiply
    25,745.04x = 38,615.13 × 8,211.78
  4. Step 4: Simplify right side
    25,745.04x = 317,098,952.23
  5. Step 5: Solve for x
    x = 317,098,952.23/25,745.04
  6. Step 6: Final answer
    x = 12,316.89

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1.5x scale

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.