Home / 8,109.56-11,188.12-5,124.24

Finding the Fourth Proportional to 8,109.56, 11,188.12 and 5,124.24

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Solution

The fourth proportional to 8,109.56, 11,188.12 and 5,124.24 is: 7,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.56 : 11,188.12 = 5,124.24 : x
  2. Step 2: Convert to fraction form
    8,109.56/11,188.12 = 5,124.24/x
  3. Step 3: Cross multiply
    8,109.56x = 11,188.12 × 5,124.24
  4. Step 4: Simplify right side
    8,109.56x = 57,330,612.03
  5. Step 5: Solve for x
    x = 57,330,612.03/8,109.56
  6. Step 6: Final answer
    x = 7,069.51

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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.