Home / 14,515.40-21,770.76-3,983.24

Finding the Fourth Proportional to 14,515.40, 21,770.76 and 3,983.24

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Solution

The fourth proportional to 14,515.40, 21,770.76 and 3,983.24 is: 5,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.40 : 21,770.76 = 3,983.24 : x
  2. Step 2: Convert to fraction form
    14,515.40/21,770.76 = 3,983.24/x
  3. Step 3: Cross multiply
    14,515.40x = 21,770.76 × 3,983.24
  4. Step 4: Simplify right side
    14,515.40x = 86,718,162.06
  5. Step 5: Solve for x
    x = 86,718,162.06/14,515.40
  6. Step 6: Final answer
    x = 5,974.22

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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.