Home / 14,077.15-21,121.85-8,824.20

Finding the Fourth Proportional to 14,077.15, 21,121.85 and 8,824.20

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Solution

The fourth proportional to 14,077.15, 21,121.85 and 8,824.20 is: 13,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.15 : 21,121.85 = 8,824.20 : x
  2. Step 2: Convert to fraction form
    14,077.15/21,121.85 = 8,824.20/x
  3. Step 3: Cross multiply
    14,077.15x = 21,121.85 × 8,824.20
  4. Step 4: Simplify right side
    14,077.15x = 186,383,428.77
  5. Step 5: Solve for x
    x = 186,383,428.77/14,077.15
  6. Step 6: Final answer
    x = 13,240.14

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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.