Home / 15,247.86-21,040.61-8,532.56

Finding the Fourth Proportional to 15,247.86, 21,040.61 and 8,532.56

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Solution

The fourth proportional to 15,247.86, 21,040.61 and 8,532.56 is: 11,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,247.86 : 21,040.61 = 8,532.56 : x
  2. Step 2: Convert to fraction form
    15,247.86/21,040.61 = 8,532.56/x
  3. Step 3: Cross multiply
    15,247.86x = 21,040.61 × 8,532.56
  4. Step 4: Simplify right side
    15,247.86x = 179,530,119.40
  5. Step 5: Solve for x
    x = 179,530,119.40/15,247.86
  6. Step 6: Final answer
    x = 11,774.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.