Home / 25,707.18-38,560.86-8,178.60

Finding the Fourth Proportional to 25,707.18, 38,560.86 and 8,178.60

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Solution

The fourth proportional to 25,707.18, 38,560.86 and 8,178.60 is: 12,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,707.18 : 38,560.86 = 8,178.60 : x
  2. Step 2: Convert to fraction form
    25,707.18/38,560.86 = 8,178.60/x
  3. Step 3: Cross multiply
    25,707.18x = 38,560.86 × 8,178.60
  4. Step 4: Simplify right side
    25,707.18x = 315,373,849.60
  5. Step 5: Solve for x
    x = 315,373,849.60/25,707.18
  6. Step 6: Final answer
    x = 12,267.93

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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.