Home / 11,348.20-15,628.26-8,199.40

Finding the Fourth Proportional to 11,348.20, 15,628.26 and 8,199.40

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Solution

The fourth proportional to 11,348.20, 15,628.26 and 8,199.40 is: 11,291.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.20 : 15,628.26 = 8,199.40 : x
  2. Step 2: Convert to fraction form
    11,348.20/15,628.26 = 8,199.40/x
  3. Step 3: Cross multiply
    11,348.20x = 15,628.26 × 8,199.40
  4. Step 4: Simplify right side
    11,348.20x = 128,142,355.04
  5. Step 5: Solve for x
    x = 128,142,355.04/11,348.20
  6. Step 6: Final answer
    x = 11,291.87

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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.