Home / 11,197.80-15,451.96-6,482.40

Finding the Fourth Proportional to 11,197.80, 15,451.96 and 6,482.40

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Solution

The fourth proportional to 11,197.80, 15,451.96 and 6,482.40 is: 8,945.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,197.80 : 15,451.96 = 6,482.40 : x
  2. Step 2: Convert to fraction form
    11,197.80/15,451.96 = 6,482.40/x
  3. Step 3: Cross multiply
    11,197.80x = 15,451.96 × 6,482.40
  4. Step 4: Simplify right side
    11,197.80x = 100,165,785.50
  5. Step 5: Solve for x
    x = 100,165,785.50/11,197.80
  6. Step 6: Final answer
    x = 8,945.13

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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.