Home / 9,819.15-13,550.79-5,628.21

Finding the Fourth Proportional to 9,819.15, 13,550.79 and 5,628.21

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Solution

The fourth proportional to 9,819.15, 13,550.79 and 5,628.21 is: 7,767.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.15 : 13,550.79 = 5,628.21 : x
  2. Step 2: Convert to fraction form
    9,819.15/13,550.79 = 5,628.21/x
  3. Step 3: Cross multiply
    9,819.15x = 13,550.79 × 5,628.21
  4. Step 4: Simplify right side
    9,819.15x = 76,266,691.79
  5. Step 5: Solve for x
    x = 76,266,691.79/9,819.15
  6. Step 6: Final answer
    x = 7,767.14

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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.