Home / 14,123.10-21,176.55-4,260.90

Finding the Fourth Proportional to 14,123.10, 21,176.55 and 4,260.90

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Solution

The fourth proportional to 14,123.10, 21,176.55 and 4,260.90 is: 6,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.10 : 21,176.55 = 4,260.90 : x
  2. Step 2: Convert to fraction form
    14,123.10/21,176.55 = 4,260.90/x
  3. Step 3: Cross multiply
    14,123.10x = 21,176.55 × 4,260.90
  4. Step 4: Simplify right side
    14,123.10x = 90,231,161.90
  5. Step 5: Solve for x
    x = 90,231,161.90/14,123.10
  6. Step 6: Final answer
    x = 6,388.91

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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.