Home / 14,073.12-21,115.26-5,310.36

Finding the Fourth Proportional to 14,073.12, 21,115.26 and 5,310.36

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Solution

The fourth proportional to 14,073.12, 21,115.26 and 5,310.36 is: 7,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073.12 : 21,115.26 = 5,310.36 : x
  2. Step 2: Convert to fraction form
    14,073.12/21,115.26 = 5,310.36/x
  3. Step 3: Cross multiply
    14,073.12x = 21,115.26 × 5,310.36
  4. Step 4: Simplify right side
    14,073.12x = 112,129,632.09
  5. Step 5: Solve for x
    x = 112,129,632.09/14,073.12
  6. Step 6: Final answer
    x = 7,967.65

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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.