Home / 8,139.91-12,210.33-2,296.96

Finding the Fourth Proportional to 8,139.91, 12,210.33 and 2,296.96

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Solution

The fourth proportional to 8,139.91, 12,210.33 and 2,296.96 is: 3,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.91 : 12,210.33 = 2,296.96 : x
  2. Step 2: Convert to fraction form
    8,139.91/12,210.33 = 2,296.96/x
  3. Step 3: Cross multiply
    8,139.91x = 12,210.33 × 2,296.96
  4. Step 4: Simplify right side
    8,139.91x = 28,046,639.60
  5. Step 5: Solve for x
    x = 28,046,639.60/8,139.91
  6. Step 6: Final answer
    x = 3,445.57

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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.