Home / 14,213.12-21,317.28-3,822.56

Finding the Fourth Proportional to 14,213.12, 21,317.28 and 3,822.56

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Solution

The fourth proportional to 14,213.12, 21,317.28 and 3,822.56 is: 5,733.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.12 : 21,317.28 = 3,822.56 : x
  2. Step 2: Convert to fraction form
    14,213.12/21,317.28 = 3,822.56/x
  3. Step 3: Cross multiply
    14,213.12x = 21,317.28 × 3,822.56
  4. Step 4: Simplify right side
    14,213.12x = 81,486,581.84
  5. Step 5: Solve for x
    x = 81,486,581.84/14,213.12
  6. Step 6: Final answer
    x = 5,733.19

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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.