Home / 13,404.30-20,106.45-8,495.70

Finding the Fourth Proportional to 13,404.30, 20,106.45 and 8,495.70

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Solution

The fourth proportional to 13,404.30, 20,106.45 and 8,495.70 is: 12,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.30 : 20,106.45 = 8,495.70 : x
  2. Step 2: Convert to fraction form
    13,404.30/20,106.45 = 8,495.70/x
  3. Step 3: Cross multiply
    13,404.30x = 20,106.45 × 8,495.70
  4. Step 4: Simplify right side
    13,404.30x = 170,818,367.27
  5. Step 5: Solve for x
    x = 170,818,367.27/13,404.30
  6. Step 6: Final answer
    x = 12,743.55

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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.