Home / 8,815.04-12,165.71-5,631.24

Finding the Fourth Proportional to 8,815.04, 12,165.71 and 5,631.24

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Solution

The fourth proportional to 8,815.04, 12,165.71 and 5,631.24 is: 7,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.04 : 12,165.71 = 5,631.24 : x
  2. Step 2: Convert to fraction form
    8,815.04/12,165.71 = 5,631.24/x
  3. Step 3: Cross multiply
    8,815.04x = 12,165.71 × 5,631.24
  4. Step 4: Simplify right side
    8,815.04x = 68,508,004.62
  5. Step 5: Solve for x
    x = 68,508,004.62/8,815.04
  6. Step 6: Final answer
    x = 7,771.72

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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.