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Finding the Fourth Proportional to 8,426.88, 11,623.68 and 5,114.88

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Solution

The fourth proportional to 8,426.88, 11,623.68 and 5,114.88 is: 7,055.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.88 : 11,623.68 = 5,114.88 : x
  2. Step 2: Convert to fraction form
    8,426.88/11,623.68 = 5,114.88/x
  3. Step 3: Cross multiply
    8,426.88x = 11,623.68 × 5,114.88
  4. Step 4: Simplify right side
    8,426.88x = 59,453,728.36
  5. Step 5: Solve for x
    x = 59,453,728.36/8,426.88
  6. Step 6: Final answer
    x = 7,055.25

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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.