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Finding the Fourth Proportional to 10,016.80, 14,986.80 and 6,560.80

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Solution

The fourth proportional to 10,016.80, 14,986.80 and 6,560.80 is: 9,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,016.80 : 14,986.80 = 6,560.80 : x
  2. Step 2: Convert to fraction form
    10,016.80/14,986.80 = 6,560.80/x
  3. Step 3: Cross multiply
    10,016.80x = 14,986.80 × 6,560.80
  4. Step 4: Simplify right side
    10,016.80x = 98,325,397.44
  5. Step 5: Solve for x
    x = 98,325,397.44/10,016.80
  6. Step 6: Final answer
    x = 9,816.05

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1.5x scale

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.