Home / 8,806.32-12,137.85-6,149.12

Finding the Fourth Proportional to 8,806.32, 12,137.85 and 6,149.12

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Solution

The fourth proportional to 8,806.32, 12,137.85 and 6,149.12 is: 8,475.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.32 : 12,137.85 = 6,149.12 : x
  2. Step 2: Convert to fraction form
    8,806.32/12,137.85 = 6,149.12/x
  3. Step 3: Cross multiply
    8,806.32x = 12,137.85 × 6,149.12
  4. Step 4: Simplify right side
    8,806.32x = 74,637,035.50
  5. Step 5: Solve for x
    x = 74,637,035.50/8,806.32
  6. Step 6: Final answer
    x = 8,475.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.