Home / 10,366.64-15,550.20-8,085.68

Finding the Fourth Proportional to 10,366.64, 15,550.20 and 8,085.68

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Solution

The fourth proportional to 10,366.64, 15,550.20 and 8,085.68 is: 12,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366.64 : 15,550.20 = 8,085.68 : x
  2. Step 2: Convert to fraction form
    10,366.64/15,550.20 = 8,085.68/x
  3. Step 3: Cross multiply
    10,366.64x = 15,550.20 × 8,085.68
  4. Step 4: Simplify right side
    10,366.64x = 125,733,941.14
  5. Step 5: Solve for x
    x = 125,733,941.14/10,366.64
  6. Step 6: Final answer
    x = 12,128.71

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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.