Home / 10,221.69-15,326.46-5,480.49

Finding the Fourth Proportional to 10,221.69, 15,326.46 and 5,480.49

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Solution

The fourth proportional to 10,221.69, 15,326.46 and 5,480.49 is: 8,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.69 : 15,326.46 = 5,480.49 : x
  2. Step 2: Convert to fraction form
    10,221.69/15,326.46 = 5,480.49/x
  3. Step 3: Cross multiply
    10,221.69x = 15,326.46 × 5,480.49
  4. Step 4: Simplify right side
    10,221.69x = 83,996,510.77
  5. Step 5: Solve for x
    x = 83,996,510.77/10,221.69
  6. Step 6: Final answer
    x = 8,217.48

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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.