Home / 14,465.12-19,961.76-8,091.72

Finding the Fourth Proportional to 14,465.12, 19,961.76 and 8,091.72

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Solution

The fourth proportional to 14,465.12, 19,961.76 and 8,091.72 is: 11,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,465.12 : 19,961.76 = 8,091.72 : x
  2. Step 2: Convert to fraction form
    14,465.12/19,961.76 = 8,091.72/x
  3. Step 3: Cross multiply
    14,465.12x = 19,961.76 × 8,091.72
  4. Step 4: Simplify right side
    14,465.12x = 161,524,972.63
  5. Step 5: Solve for x
    x = 161,524,972.63/14,465.12
  6. Step 6: Final answer
    x = 11,166.51

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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.