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Finding the Fourth Proportional to 8,786.18, 13,210.89 and 8,101.23

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Solution

The fourth proportional to 8,786.18, 13,210.89 and 8,101.23 is: 12,181.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.18 : 13,210.89 = 8,101.23 : x
  2. Step 2: Convert to fraction form
    8,786.18/13,210.89 = 8,101.23/x
  3. Step 3: Cross multiply
    8,786.18x = 13,210.89 × 8,101.23
  4. Step 4: Simplify right side
    8,786.18x = 107,024,458.39
  5. Step 5: Solve for x
    x = 107,024,458.39/8,786.18
  6. Step 6: Final answer
    x = 12,181.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.