Home / 10,207.08-15,310.62-2,812.32

Finding the Fourth Proportional to 10,207.08, 15,310.62 and 2,812.32

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Solution

The fourth proportional to 10,207.08, 15,310.62 and 2,812.32 is: 4,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207.08 : 15,310.62 = 2,812.32 : x
  2. Step 2: Convert to fraction form
    10,207.08/15,310.62 = 2,812.32/x
  3. Step 3: Cross multiply
    10,207.08x = 15,310.62 × 2,812.32
  4. Step 4: Simplify right side
    10,207.08x = 43,058,362.84
  5. Step 5: Solve for x
    x = 43,058,362.84/10,207.08
  6. Step 6: Final answer
    x = 4,218.48

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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.