Home / 10,104.64-13,944.38-5,628.78

Finding the Fourth Proportional to 10,104.64, 13,944.38 and 5,628.78

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Solution

The fourth proportional to 10,104.64, 13,944.38 and 5,628.78 is: 7,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,104.64 : 13,944.38 = 5,628.78 : x
  2. Step 2: Convert to fraction form
    10,104.64/13,944.38 = 5,628.78/x
  3. Step 3: Cross multiply
    10,104.64x = 13,944.38 × 5,628.78
  4. Step 4: Simplify right side
    10,104.64x = 78,489,819.11
  5. Step 5: Solve for x
    x = 78,489,819.11/10,104.64
  6. Step 6: Final answer
    x = 7,767.70

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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.