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Finding the Fourth Proportional to 14,049.57, 21,058.16 and 5,278.89

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Solution

The fourth proportional to 14,049.57, 21,058.16 and 5,278.89 is: 7,912.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,049.57 : 21,058.16 = 5,278.89 : x
  2. Step 2: Convert to fraction form
    14,049.57/21,058.16 = 5,278.89/x
  3. Step 3: Cross multiply
    14,049.57x = 21,058.16 × 5,278.89
  4. Step 4: Simplify right side
    14,049.57x = 111,163,683.85
  5. Step 5: Solve for x
    x = 111,163,683.85/14,049.57
  6. Step 6: Final answer
    x = 7,912.25

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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.