Home / 11,023.90-15,213.32-6,309.70

Finding the Fourth Proportional to 11,023.90, 15,213.32 and 6,309.70

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Solution

The fourth proportional to 11,023.90, 15,213.32 and 6,309.70 is: 8,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,023.90 : 15,213.32 = 6,309.70 : x
  2. Step 2: Convert to fraction form
    11,023.90/15,213.32 = 6,309.70/x
  3. Step 3: Cross multiply
    11,023.90x = 15,213.32 × 6,309.70
  4. Step 4: Simplify right side
    11,023.90x = 95,991,439.28
  5. Step 5: Solve for x
    x = 95,991,439.28/11,023.90
  6. Step 6: Final answer
    x = 8,707.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.