Home / 10,119.45-15,185.92-3,545.63

Finding the Fourth Proportional to 10,119.45, 15,185.92 and 3,545.63

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Solution

The fourth proportional to 10,119.45, 15,185.92 and 3,545.63 is: 5,320.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,119.45 : 15,185.92 = 3,545.63 : x
  2. Step 2: Convert to fraction form
    10,119.45/15,185.92 = 3,545.63/x
  3. Step 3: Cross multiply
    10,119.45x = 15,185.92 × 3,545.63
  4. Step 4: Simplify right side
    10,119.45x = 53,843,653.53
  5. Step 5: Solve for x
    x = 53,843,653.53/10,119.45
  6. Step 6: Final answer
    x = 5,320.81

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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.