Home / 8,459.19-12,689.99-2,616.25

Finding the Fourth Proportional to 8,459.19, 12,689.99 and 2,616.25

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Solution

The fourth proportional to 8,459.19, 12,689.99 and 2,616.25 is: 3,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,459.19 : 12,689.99 = 2,616.25 : x
  2. Step 2: Convert to fraction form
    8,459.19/12,689.99 = 2,616.25/x
  3. Step 3: Cross multiply
    8,459.19x = 12,689.99 × 2,616.25
  4. Step 4: Simplify right side
    8,459.19x = 33,200,186.34
  5. Step 5: Solve for x
    x = 33,200,186.34/8,459.19
  6. Step 6: Final answer
    x = 3,924.75

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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.