Home / 8,085.32-12,113.55-4,385.19

Finding the Fourth Proportional to 8,085.32, 12,113.55 and 4,385.19

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Solution

The fourth proportional to 8,085.32, 12,113.55 and 4,385.19 is: 6,569.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.32 : 12,113.55 = 4,385.19 : x
  2. Step 2: Convert to fraction form
    8,085.32/12,113.55 = 4,385.19/x
  3. Step 3: Cross multiply
    8,085.32x = 12,113.55 × 4,385.19
  4. Step 4: Simplify right side
    8,085.32x = 53,120,177.08
  5. Step 5: Solve for x
    x = 53,120,177.08/8,085.32
  6. Step 6: Final answer
    x = 6,569.96

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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.