Home / 15,154.75-20,913.56-8,441.66

Finding the Fourth Proportional to 15,154.75, 20,913.56 and 8,441.66

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Solution

The fourth proportional to 15,154.75, 20,913.56 and 8,441.66 is: 11,649.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.75 : 20,913.56 = 8,441.66 : x
  2. Step 2: Convert to fraction form
    15,154.75/20,913.56 = 8,441.66/x
  3. Step 3: Cross multiply
    15,154.75x = 20,913.56 × 8,441.66
  4. Step 4: Simplify right side
    15,154.75x = 176,545,120.70
  5. Step 5: Solve for x
    x = 176,545,120.70/15,154.75
  6. Step 6: Final answer
    x = 11,649.49

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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.