Home / 12,329.70-18,494.55-5,404.20

Finding the Fourth Proportional to 12,329.70, 18,494.55 and 5,404.20

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Solution

The fourth proportional to 12,329.70, 18,494.55 and 5,404.20 is: 8,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.70 : 18,494.55 = 5,404.20 : x
  2. Step 2: Convert to fraction form
    12,329.70/18,494.55 = 5,404.20/x
  3. Step 3: Cross multiply
    12,329.70x = 18,494.55 × 5,404.20
  4. Step 4: Simplify right side
    12,329.70x = 99,948,247.11
  5. Step 5: Solve for x
    x = 99,948,247.11/12,329.70
  6. Step 6: Final answer
    x = 8,106.30

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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.