Home / 8,419.40-12,628.95-2,876.62

Finding the Fourth Proportional to 8,419.40, 12,628.95 and 2,876.62

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Solution

The fourth proportional to 8,419.40, 12,628.95 and 2,876.62 is: 4,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.40 : 12,628.95 = 2,876.62 : x
  2. Step 2: Convert to fraction form
    8,419.40/12,628.95 = 2,876.62/x
  3. Step 3: Cross multiply
    8,419.40x = 12,628.95 × 2,876.62
  4. Step 4: Simplify right side
    8,419.40x = 36,328,627.00
  5. Step 5: Solve for x
    x = 36,328,627.00/8,419.40
  6. Step 6: Final answer
    x = 4,314.87

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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.