Home / 13,354.12-20,005.18-8,723.08

Finding the Fourth Proportional to 13,354.12, 20,005.18 and 8,723.08

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Solution

The fourth proportional to 13,354.12, 20,005.18 and 8,723.08 is: 13,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.12 : 20,005.18 = 8,723.08 : x
  2. Step 2: Convert to fraction form
    13,354.12/20,005.18 = 8,723.08/x
  3. Step 3: Cross multiply
    13,354.12x = 20,005.18 × 8,723.08
  4. Step 4: Simplify right side
    13,354.12x = 174,506,785.55
  5. Step 5: Solve for x
    x = 174,506,785.55/13,354.12
  6. Step 6: Final answer
    x = 13,067.64

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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.