Home / 8,112.35-11,189.26-5,274.46

Finding the Fourth Proportional to 8,112.35, 11,189.26 and 5,274.46

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Solution

The fourth proportional to 8,112.35, 11,189.26 and 5,274.46 is: 7,275.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.35 : 11,189.26 = 5,274.46 : x
  2. Step 2: Convert to fraction form
    8,112.35/11,189.26 = 5,274.46/x
  3. Step 3: Cross multiply
    8,112.35x = 11,189.26 × 5,274.46
  4. Step 4: Simplify right side
    8,112.35x = 59,017,282.92
  5. Step 5: Solve for x
    x = 59,017,282.92/8,112.35
  6. Step 6: Final answer
    x = 7,275.00

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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.