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Finding the Fourth Proportional to 8,398.36, 12,599.36 and 2,776.26

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Solution

The fourth proportional to 8,398.36, 12,599.36 and 2,776.26 is: 4,164.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.36 : 12,599.36 = 2,776.26 : x
  2. Step 2: Convert to fraction form
    8,398.36/12,599.36 = 2,776.26/x
  3. Step 3: Cross multiply
    8,398.36x = 12,599.36 × 2,776.26
  4. Step 4: Simplify right side
    8,398.36x = 34,979,099.19
  5. Step 5: Solve for x
    x = 34,979,099.19/8,398.36
  6. Step 6: Final answer
    x = 4,164.99

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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.