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Finding the Fourth Proportional to 10,357.60, 15,512.10 and 7,052.80

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Solution

The fourth proportional to 10,357.60, 15,512.10 and 7,052.80 is: 10,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,357.60 : 15,512.10 = 7,052.80 : x
  2. Step 2: Convert to fraction form
    10,357.60/15,512.10 = 7,052.80/x
  3. Step 3: Cross multiply
    10,357.60x = 15,512.10 × 7,052.80
  4. Step 4: Simplify right side
    10,357.60x = 109,403,738.88
  5. Step 5: Solve for x
    x = 109,403,738.88/10,357.60
  6. Step 6: Final answer
    x = 10,562.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.