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Finding the Fourth Proportional to 9,210.88, 13,877.84 and 8,334.48

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Solution

The fourth proportional to 9,210.88, 13,877.84 and 8,334.48 is: 12,557.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,210.88 : 13,877.84 = 8,334.48 : x
  2. Step 2: Convert to fraction form
    9,210.88/13,877.84 = 8,334.48/x
  3. Step 3: Cross multiply
    9,210.88x = 13,877.84 × 8,334.48
  4. Step 4: Simplify right side
    9,210.88x = 115,664,579.92
  5. Step 5: Solve for x
    x = 115,664,579.92/9,210.88
  6. Step 6: Final answer
    x = 12,557.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.