Home / 13,443.62-20,147.91-6,864.26

Finding the Fourth Proportional to 13,443.62, 20,147.91 and 6,864.26

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Solution

The fourth proportional to 13,443.62, 20,147.91 and 6,864.26 is: 10,287.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.62 : 20,147.91 = 6,864.26 : x
  2. Step 2: Convert to fraction form
    13,443.62/20,147.91 = 6,864.26/x
  3. Step 3: Cross multiply
    13,443.62x = 20,147.91 × 6,864.26
  4. Step 4: Simplify right side
    13,443.62x = 138,300,492.70
  5. Step 5: Solve for x
    x = 138,300,492.70/13,443.62
  6. Step 6: Final answer
    x = 10,287.44

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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.