Home / 8,815.04-12,164.36-5,280.20

Finding the Fourth Proportional to 8,815.04, 12,164.36 and 5,280.20

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Solution

The fourth proportional to 8,815.04, 12,164.36 and 5,280.20 is: 7,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.04 : 12,164.36 = 5,280.20 : x
  2. Step 2: Convert to fraction form
    8,815.04/12,164.36 = 5,280.20/x
  3. Step 3: Cross multiply
    8,815.04x = 12,164.36 × 5,280.20
  4. Step 4: Simplify right side
    8,815.04x = 64,230,253.67
  5. Step 5: Solve for x
    x = 64,230,253.67/8,815.04
  6. Step 6: Final answer
    x = 7,286.44

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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.