Home / 10,207.26-15,308.91-2,809.89

Finding the Fourth Proportional to 10,207.26, 15,308.91 and 2,809.89

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Solution

The fourth proportional to 10,207.26, 15,308.91 and 2,809.89 is: 4,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.26 : 15,308.91 = 2,809.89 : x
  2. Step 2: Convert to fraction form
    10,207.26/15,308.91 = 2,809.89/x
  3. Step 3: Cross multiply
    10,207.26x = 15,308.91 × 2,809.89
  4. Step 4: Simplify right side
    10,207.26x = 43,016,353.12
  5. Step 5: Solve for x
    x = 43,016,353.12/10,207.26
  6. Step 6: Final answer
    x = 4,214.29

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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.