Home / 10,409.47-15,616.51-4,859.79

Finding the Fourth Proportional to 10,409.47, 15,616.51 and 4,859.79

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Solution

The fourth proportional to 10,409.47, 15,616.51 and 4,859.79 is: 7,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.47 : 15,616.51 = 4,859.79 : x
  2. Step 2: Convert to fraction form
    10,409.47/15,616.51 = 4,859.79/x
  3. Step 3: Cross multiply
    10,409.47x = 15,616.51 × 4,859.79
  4. Step 4: Simplify right side
    10,409.47x = 75,892,959.13
  5. Step 5: Solve for x
    x = 75,892,959.13/10,409.47
  6. Step 6: Final answer
    x = 7,290.76

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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.