Home / 8,812.80-12,158.31-5,626.22

Finding the Fourth Proportional to 8,812.80, 12,158.31 and 5,626.22

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Solution

The fourth proportional to 8,812.80, 12,158.31 and 5,626.22 is: 7,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.80 : 12,158.31 = 5,626.22 : x
  2. Step 2: Convert to fraction form
    8,812.80/12,158.31 = 5,626.22/x
  3. Step 3: Cross multiply
    8,812.80x = 12,158.31 × 5,626.22
  4. Step 4: Simplify right side
    8,812.80x = 68,405,266.10
  5. Step 5: Solve for x
    x = 68,405,266.10/8,812.80
  6. Step 6: Final answer
    x = 7,762.04

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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.