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Finding the Fourth Proportional to 8,259.74, 11,392.79 and 5,274.23

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Solution

The fourth proportional to 8,259.74, 11,392.79 and 5,274.23 is: 7,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.74 : 11,392.79 = 5,274.23 : x
  2. Step 2: Convert to fraction form
    8,259.74/11,392.79 = 5,274.23/x
  3. Step 3: Cross multiply
    8,259.74x = 11,392.79 × 5,274.23
  4. Step 4: Simplify right side
    8,259.74x = 60,088,194.80
  5. Step 5: Solve for x
    x = 60,088,194.80/8,259.74
  6. Step 6: Final answer
    x = 7,274.83

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Find fourth proportional to 8,260.74, 11,394.17 and 5,275.23
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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.