Home / 8,195.20-12,300.48-4,302.40

Finding the Fourth Proportional to 8,195.20, 12,300.48 and 4,302.40

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Solution

The fourth proportional to 8,195.20, 12,300.48 and 4,302.40 is: 6,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.20 : 12,300.48 = 4,302.40 : x
  2. Step 2: Convert to fraction form
    8,195.20/12,300.48 = 4,302.40/x
  3. Step 3: Cross multiply
    8,195.20x = 12,300.48 × 4,302.40
  4. Step 4: Simplify right side
    8,195.20x = 52,921,585.15
  5. Step 5: Solve for x
    x = 52,921,585.15/8,195.20
  6. Step 6: Final answer
    x = 6,457.63

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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.