Home / 14,091.12-19,445.71-8,122.76

Finding the Fourth Proportional to 14,091.12, 19,445.71 and 8,122.76

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Solution

The fourth proportional to 14,091.12, 19,445.71 and 8,122.76 is: 11,209.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.12 : 19,445.71 = 8,122.76 : x
  2. Step 2: Convert to fraction form
    14,091.12/19,445.71 = 8,122.76/x
  3. Step 3: Cross multiply
    14,091.12x = 19,445.71 × 8,122.76
  4. Step 4: Simplify right side
    14,091.12x = 157,952,697.52
  5. Step 5: Solve for x
    x = 157,952,697.52/14,091.12
  6. Step 6: Final answer
    x = 11,209.38

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Half scale
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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.