Home / 14,070.12-21,108.29-5,305.11

Finding the Fourth Proportional to 14,070.12, 21,108.29 and 5,305.11

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Solution

The fourth proportional to 14,070.12, 21,108.29 and 5,305.11 is: 7,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.12 : 21,108.29 = 5,305.11 : x
  2. Step 2: Convert to fraction form
    14,070.12/21,108.29 = 5,305.11/x
  3. Step 3: Cross multiply
    14,070.12x = 21,108.29 × 5,305.11
  4. Step 4: Simplify right side
    14,070.12x = 111,981,708.08
  5. Step 5: Solve for x
    x = 111,981,708.08/14,070.12
  6. Step 6: Final answer
    x = 7,958.83

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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.