Home / 10,344.89-15,521.88-5,418.06

Finding the Fourth Proportional to 10,344.89, 15,521.88 and 5,418.06

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Solution

The fourth proportional to 10,344.89, 15,521.88 and 5,418.06 is: 8,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,344.89 : 15,521.88 = 5,418.06 : x
  2. Step 2: Convert to fraction form
    10,344.89/15,521.88 = 5,418.06/x
  3. Step 3: Cross multiply
    10,344.89x = 15,521.88 × 5,418.06
  4. Step 4: Simplify right side
    10,344.89x = 84,098,477.15
  5. Step 5: Solve for x
    x = 84,098,477.15/10,344.89
  6. Step 6: Final answer
    x = 8,129.47

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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.