Home / 15,328.12-22,979.78-4,792.72

Finding the Fourth Proportional to 15,328.12, 22,979.78 and 4,792.72

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Solution

The fourth proportional to 15,328.12, 22,979.78 and 4,792.72 is: 7,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,328.12 : 22,979.78 = 4,792.72 : x
  2. Step 2: Convert to fraction form
    15,328.12/22,979.78 = 4,792.72/x
  3. Step 3: Cross multiply
    15,328.12x = 22,979.78 × 4,792.72
  4. Step 4: Simplify right side
    15,328.12x = 110,135,569.79
  5. Step 5: Solve for x
    x = 110,135,569.79/15,328.12
  6. Step 6: Final answer
    x = 7,185.20

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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.