Home / 11,313.32-15,612.78-8,475.68

Finding the Fourth Proportional to 11,313.32, 15,612.78 and 8,475.68

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Solution

The fourth proportional to 11,313.32, 15,612.78 and 8,475.68 is: 11,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313.32 : 15,612.78 = 8,475.68 : x
  2. Step 2: Convert to fraction form
    11,313.32/15,612.78 = 8,475.68/x
  3. Step 3: Cross multiply
    11,313.32x = 15,612.78 × 8,475.68
  4. Step 4: Simplify right side
    11,313.32x = 132,328,849.13
  5. Step 5: Solve for x
    x = 132,328,849.13/11,313.32
  6. Step 6: Final answer
    x = 11,696.74

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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.