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Finding the Fourth Proportional to 10,700.80, 16,051.20 and 10,297.60

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Solution

The fourth proportional to 10,700.80, 16,051.20 and 10,297.60 is: 15,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,700.80 : 16,051.20 = 10,297.60 : x
  2. Step 2: Convert to fraction form
    10,700.80/16,051.20 = 10,297.60/x
  3. Step 3: Cross multiply
    10,700.80x = 16,051.20 × 10,297.60
  4. Step 4: Simplify right side
    10,700.80x = 165,288,837.12
  5. Step 5: Solve for x
    x = 165,288,837.12/10,700.80
  6. Step 6: Final answer
    x = 15,446.40

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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.