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Finding the Fourth Proportional to 8,677.16, 13,018.18 and 3,486.68

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Solution

The fourth proportional to 8,677.16, 13,018.18 and 3,486.68 is: 5,231.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.16 : 13,018.18 = 3,486.68 : x
  2. Step 2: Convert to fraction form
    8,677.16/13,018.18 = 3,486.68/x
  3. Step 3: Cross multiply
    8,677.16x = 13,018.18 × 3,486.68
  4. Step 4: Simplify right side
    8,677.16x = 45,390,227.84
  5. Step 5: Solve for x
    x = 45,390,227.84/8,677.16
  6. Step 6: Final answer
    x = 5,231.00

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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.