Home / 10,418.29-15,622.12-3,393.79

Finding the Fourth Proportional to 10,418.29, 15,622.12 and 3,393.79

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Solution

The fourth proportional to 10,418.29, 15,622.12 and 3,393.79 is: 5,088.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.29 : 15,622.12 = 3,393.79 : x
  2. Step 2: Convert to fraction form
    10,418.29/15,622.12 = 3,393.79/x
  3. Step 3: Cross multiply
    10,418.29x = 15,622.12 × 3,393.79
  4. Step 4: Simplify right side
    10,418.29x = 53,018,159.82
  5. Step 5: Solve for x
    x = 53,018,159.82/10,418.29
  6. Step 6: Final answer
    x = 5,088.95

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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.