Home / 9,187.11-13,781.88-2,945.05

Finding the Fourth Proportional to 9,187.11, 13,781.88 and 2,945.05

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Solution

The fourth proportional to 9,187.11, 13,781.88 and 2,945.05 is: 4,417.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.11 : 13,781.88 = 2,945.05 : x
  2. Step 2: Convert to fraction form
    9,187.11/13,781.88 = 2,945.05/x
  3. Step 3: Cross multiply
    9,187.11x = 13,781.88 × 2,945.05
  4. Step 4: Simplify right side
    9,187.11x = 40,588,284.28
  5. Step 5: Solve for x
    x = 40,588,284.28/9,187.11
  6. Step 6: Final answer
    x = 4,417.96

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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.