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Finding the Fourth Proportional to 15,173.58, 20,949.62 and 9,798.42

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Solution

The fourth proportional to 15,173.58, 20,949.62 and 9,798.42 is: 13,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,173.58 : 20,949.62 = 9,798.42 : x
  2. Step 2: Convert to fraction form
    15,173.58/20,949.62 = 9,798.42/x
  3. Step 3: Cross multiply
    15,173.58x = 20,949.62 × 9,798.42
  4. Step 4: Simplify right side
    15,173.58x = 205,273,126.61
  5. Step 5: Solve for x
    x = 205,273,126.61/15,173.58
  6. Step 6: Final answer
    x = 13,528.33

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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.