Home / 14,146.12-21,216.45-13,443.65

Finding the Fourth Proportional to 14,146.12, 21,216.45 and 13,443.65

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Solution

The fourth proportional to 14,146.12, 21,216.45 and 13,443.65 is: 20,162.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.12 : 21,216.45 = 13,443.65 : x
  2. Step 2: Convert to fraction form
    14,146.12/21,216.45 = 13,443.65/x
  3. Step 3: Cross multiply
    14,146.12x = 21,216.45 × 13,443.65
  4. Step 4: Simplify right side
    14,146.12x = 285,226,528.04
  5. Step 5: Solve for x
    x = 285,226,528.04/14,146.12
  6. Step 6: Final answer
    x = 20,162.88

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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.