Home / 11,447.12-17,170.36-3,656.40

Finding the Fourth Proportional to 11,447.12, 17,170.36 and 3,656.40

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Solution

The fourth proportional to 11,447.12, 17,170.36 and 3,656.40 is: 5,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.12 : 17,170.36 = 3,656.40 : x
  2. Step 2: Convert to fraction form
    11,447.12/17,170.36 = 3,656.40/x
  3. Step 3: Cross multiply
    11,447.12x = 17,170.36 × 3,656.40
  4. Step 4: Simplify right side
    11,447.12x = 62,781,704.30
  5. Step 5: Solve for x
    x = 62,781,704.30/11,447.12
  6. Step 6: Final answer
    x = 5,484.50

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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.