Home / 14,138.10-21,207.15-7,226.10

Finding the Fourth Proportional to 14,138.10, 21,207.15 and 7,226.10

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Solution

The fourth proportional to 14,138.10, 21,207.15 and 7,226.10 is: 10,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.10 : 21,207.15 = 7,226.10 : x
  2. Step 2: Convert to fraction form
    14,138.10/21,207.15 = 7,226.10/x
  3. Step 3: Cross multiply
    14,138.10x = 21,207.15 × 7,226.10
  4. Step 4: Simplify right side
    14,138.10x = 153,244,986.62
  5. Step 5: Solve for x
    x = 153,244,986.62/14,138.10
  6. Step 6: Final answer
    x = 10,839.15

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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.