Home / 8,125.83-12,178.76-6,475.59

Finding the Fourth Proportional to 8,125.83, 12,178.76 and 6,475.59

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Solution

The fourth proportional to 8,125.83, 12,178.76 and 6,475.59 is: 9,705.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.83 : 12,178.76 = 6,475.59 : x
  2. Step 2: Convert to fraction form
    8,125.83/12,178.76 = 6,475.59/x
  3. Step 3: Cross multiply
    8,125.83x = 12,178.76 × 6,475.59
  4. Step 4: Simplify right side
    8,125.83x = 78,864,624.09
  5. Step 5: Solve for x
    x = 78,864,624.09/8,125.83
  6. Step 6: Final answer
    x = 9,705.42

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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.