Home / 8,958.40-13,423.04-5,488.32

Finding the Fourth Proportional to 8,958.40, 13,423.04 and 5,488.32

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Solution

The fourth proportional to 8,958.40, 13,423.04 and 5,488.32 is: 8,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.40 : 13,423.04 = 5,488.32 : x
  2. Step 2: Convert to fraction form
    8,958.40/13,423.04 = 5,488.32/x
  3. Step 3: Cross multiply
    8,958.40x = 13,423.04 × 5,488.32
  4. Step 4: Simplify right side
    8,958.40x = 73,669,938.89
  5. Step 5: Solve for x
    x = 73,669,938.89/8,958.40
  6. Step 6: Final answer
    x = 8,223.56

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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.