Home / 14,115.18-21,172.23-6,724.74

Finding the Fourth Proportional to 14,115.18, 21,172.23 and 6,724.74

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Solution

The fourth proportional to 14,115.18, 21,172.23 and 6,724.74 is: 10,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.18 : 21,172.23 = 6,724.74 : x
  2. Step 2: Convert to fraction form
    14,115.18/21,172.23 = 6,724.74/x
  3. Step 3: Cross multiply
    14,115.18x = 21,172.23 × 6,724.74
  4. Step 4: Simplify right side
    14,115.18x = 142,377,741.97
  5. Step 5: Solve for x
    x = 142,377,741.97/14,115.18
  6. Step 6: Final answer
    x = 10,086.85

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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.