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Finding the Fourth Proportional to 17,802.78, 24,568.50 and 11,515.16

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Solution

The fourth proportional to 17,802.78, 24,568.50 and 11,515.16 is: 15,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,802.78 : 24,568.50 = 11,515.16 : x
  2. Step 2: Convert to fraction form
    17,802.78/24,568.50 = 11,515.16/x
  3. Step 3: Cross multiply
    17,802.78x = 24,568.50 × 11,515.16
  4. Step 4: Simplify right side
    17,802.78x = 282,910,085.62
  5. Step 5: Solve for x
    x = 282,910,085.62/17,802.78
  6. Step 6: Final answer
    x = 15,891.34

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1.5x scale

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.