Home / 10,492.42-15,738.54-3,921.70

Finding the Fourth Proportional to 10,492.42, 15,738.54 and 3,921.70

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Solution

The fourth proportional to 10,492.42, 15,738.54 and 3,921.70 is: 5,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,492.42 : 15,738.54 = 3,921.70 : x
  2. Step 2: Convert to fraction form
    10,492.42/15,738.54 = 3,921.70/x
  3. Step 3: Cross multiply
    10,492.42x = 15,738.54 × 3,921.70
  4. Step 4: Simplify right side
    10,492.42x = 61,721,832.32
  5. Step 5: Solve for x
    x = 61,721,832.32/10,492.42
  6. Step 6: Final answer
    x = 5,882.52

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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.