Home / 14,118.89-21,177.17-4,758.70

Finding the Fourth Proportional to 14,118.89, 21,177.17 and 4,758.70

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Solution

The fourth proportional to 14,118.89, 21,177.17 and 4,758.70 is: 7,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.89 : 21,177.17 = 4,758.70 : x
  2. Step 2: Convert to fraction form
    14,118.89/21,177.17 = 4,758.70/x
  3. Step 3: Cross multiply
    14,118.89x = 21,177.17 × 4,758.70
  4. Step 4: Simplify right side
    14,118.89x = 100,775,757.83
  5. Step 5: Solve for x
    x = 100,775,757.83/14,118.89
  6. Step 6: Final answer
    x = 7,137.66

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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.