Home / 14,115.78-21,176.55-4,754.70

Finding the Fourth Proportional to 14,115.78, 21,176.55 and 4,754.70

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Solution

The fourth proportional to 14,115.78, 21,176.55 and 4,754.70 is: 7,133.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.78 : 21,176.55 = 4,754.70 : x
  2. Step 2: Convert to fraction form
    14,115.78/21,176.55 = 4,754.70/x
  3. Step 3: Cross multiply
    14,115.78x = 21,176.55 × 4,754.70
  4. Step 4: Simplify right side
    14,115.78x = 100,688,142.29
  5. Step 5: Solve for x
    x = 100,688,142.29/14,115.78
  6. Step 6: Final answer
    x = 7,133.02

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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.