Home / 8,077.20-12,123.48-4,184.40

Finding the Fourth Proportional to 8,077.20, 12,123.48 and 4,184.40

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Solution

The fourth proportional to 8,077.20, 12,123.48 and 4,184.40 is: 6,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.20 : 12,123.48 = 4,184.40 : x
  2. Step 2: Convert to fraction form
    8,077.20/12,123.48 = 4,184.40/x
  3. Step 3: Cross multiply
    8,077.20x = 12,123.48 × 4,184.40
  4. Step 4: Simplify right side
    8,077.20x = 50,729,489.71
  5. Step 5: Solve for x
    x = 50,729,489.71/8,077.20
  6. Step 6: Final answer
    x = 6,280.58

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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.