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Finding the Fourth Proportional to 14,393.87, 21,576.95 and 7,377.20

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Solution

The fourth proportional to 14,393.87, 21,576.95 and 7,377.20 is: 11,058.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,393.87 : 21,576.95 = 7,377.20 : x
  2. Step 2: Convert to fraction form
    14,393.87/21,576.95 = 7,377.20/x
  3. Step 3: Cross multiply
    14,393.87x = 21,576.95 × 7,377.20
  4. Step 4: Simplify right side
    14,393.87x = 159,177,330.77
  5. Step 5: Solve for x
    x = 159,177,330.77/14,393.87
  6. Step 6: Final answer
    x = 11,058.69

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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.