Home / 10,119.09-15,178.77-3,545.46

Finding the Fourth Proportional to 10,119.09, 15,178.77 and 3,545.46

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Solution

The fourth proportional to 10,119.09, 15,178.77 and 3,545.46 is: 5,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.09 : 15,178.77 = 3,545.46 : x
  2. Step 2: Convert to fraction form
    10,119.09/15,178.77 = 3,545.46/x
  3. Step 3: Cross multiply
    10,119.09x = 15,178.77 × 3,545.46
  4. Step 4: Simplify right side
    10,119.09x = 53,815,721.88
  5. Step 5: Solve for x
    x = 53,815,721.88/10,119.09
  6. Step 6: Final answer
    x = 5,318.24

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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.