Home / 9,819.86-13,552.91-5,571.38

Finding the Fourth Proportional to 9,819.86, 13,552.91 and 5,571.38

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Solution

The fourth proportional to 9,819.86, 13,552.91 and 5,571.38 is: 7,689.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,819.86 : 13,552.91 = 5,571.38 : x
  2. Step 2: Convert to fraction form
    9,819.86/13,552.91 = 5,571.38/x
  3. Step 3: Cross multiply
    9,819.86x = 13,552.91 × 5,571.38
  4. Step 4: Simplify right side
    9,819.86x = 75,508,430.80
  5. Step 5: Solve for x
    x = 75,508,430.80/9,819.86
  6. Step 6: Final answer
    x = 7,689.36

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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.