Home / 8,816.08-12,163.80-5,631.16

Finding the Fourth Proportional to 8,816.08, 12,163.80 and 5,631.16

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Solution

The fourth proportional to 8,816.08, 12,163.80 and 5,631.16 is: 7,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.08 : 12,163.80 = 5,631.16 : x
  2. Step 2: Convert to fraction form
    8,816.08/12,163.80 = 5,631.16/x
  3. Step 3: Cross multiply
    8,816.08x = 12,163.80 × 5,631.16
  4. Step 4: Simplify right side
    8,816.08x = 68,496,304.01
  5. Step 5: Solve for x
    x = 68,496,304.01/8,816.08
  6. Step 6: Final answer
    x = 7,769.47

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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.