Home / 8,114.15-12,147.50-7,335.95

Finding the Fourth Proportional to 8,114.15, 12,147.50 and 7,335.95

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Solution

The fourth proportional to 8,114.15, 12,147.50 and 7,335.95 is: 10,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.15 : 12,147.50 = 7,335.95 : x
  2. Step 2: Convert to fraction form
    8,114.15/12,147.50 = 7,335.95/x
  3. Step 3: Cross multiply
    8,114.15x = 12,147.50 × 7,335.95
  4. Step 4: Simplify right side
    8,114.15x = 89,113,410.23
  5. Step 5: Solve for x
    x = 89,113,410.23/8,114.15
  6. Step 6: Final answer
    x = 10,982.47

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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.