Home / 8,335.20-12,502.78-3,403.74

Finding the Fourth Proportional to 8,335.20, 12,502.78 and 3,403.74

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Solution

The fourth proportional to 8,335.20, 12,502.78 and 3,403.74 is: 5,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,335.20 : 12,502.78 = 3,403.74 : x
  2. Step 2: Convert to fraction form
    8,335.20/12,502.78 = 3,403.74/x
  3. Step 3: Cross multiply
    8,335.20x = 12,502.78 × 3,403.74
  4. Step 4: Simplify right side
    8,335.20x = 42,556,212.40
  5. Step 5: Solve for x
    x = 42,556,212.40/8,335.20
  6. Step 6: Final answer
    x = 5,105.60

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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.