Home / 15,118.72-22,680.32-4,729.12

Finding the Fourth Proportional to 15,118.72, 22,680.32 and 4,729.12

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Solution

The fourth proportional to 15,118.72, 22,680.32 and 4,729.12 is: 7,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118.72 : 22,680.32 = 4,729.12 : x
  2. Step 2: Convert to fraction form
    15,118.72/22,680.32 = 4,729.12/x
  3. Step 3: Cross multiply
    15,118.72x = 22,680.32 × 4,729.12
  4. Step 4: Simplify right side
    15,118.72x = 107,257,954.92
  5. Step 5: Solve for x
    x = 107,257,954.92/15,118.72
  6. Step 6: Final answer
    x = 7,094.38

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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.