Home / 14,142.16-21,215.96-5,376.39

Finding the Fourth Proportional to 14,142.16, 21,215.96 and 5,376.39

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Solution

The fourth proportional to 14,142.16, 21,215.96 and 5,376.39 is: 8,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.16 : 21,215.96 = 5,376.39 : x
  2. Step 2: Convert to fraction form
    14,142.16/21,215.96 = 5,376.39/x
  3. Step 3: Cross multiply
    14,142.16x = 21,215.96 × 5,376.39
  4. Step 4: Simplify right side
    14,142.16x = 114,065,229.05
  5. Step 5: Solve for x
    x = 114,065,229.05/14,142.16
  6. Step 6: Final answer
    x = 8,065.62

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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.