Home / 10,185.48-15,278.76-3,612.36

Finding the Fourth Proportional to 10,185.48, 15,278.76 and 3,612.36

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Solution

The fourth proportional to 10,185.48, 15,278.76 and 3,612.36 is: 5,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.48 : 15,278.76 = 3,612.36 : x
  2. Step 2: Convert to fraction form
    10,185.48/15,278.76 = 3,612.36/x
  3. Step 3: Cross multiply
    10,185.48x = 15,278.76 × 3,612.36
  4. Step 4: Simplify right side
    10,185.48x = 55,192,381.47
  5. Step 5: Solve for x
    x = 55,192,381.47/10,185.48
  6. Step 6: Final answer
    x = 5,418.73

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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.