Home / 10,122.05-15,178.66-5,377.17

Finding the Fourth Proportional to 10,122.05, 15,178.66 and 5,377.17

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Solution

The fourth proportional to 10,122.05, 15,178.66 and 5,377.17 is: 8,063.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.05 : 15,178.66 = 5,377.17 : x
  2. Step 2: Convert to fraction form
    10,122.05/15,178.66 = 5,377.17/x
  3. Step 3: Cross multiply
    10,122.05x = 15,178.66 × 5,377.17
  4. Step 4: Simplify right side
    10,122.05x = 81,618,208.31
  5. Step 5: Solve for x
    x = 81,618,208.31/10,122.05
  6. Step 6: Final answer
    x = 8,063.41

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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.