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Finding the Fourth Proportional to 8,616.15, 12,925.40 and 3,935.07

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Solution

The fourth proportional to 8,616.15, 12,925.40 and 3,935.07 is: 5,903.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.15 : 12,925.40 = 3,935.07 : x
  2. Step 2: Convert to fraction form
    8,616.15/12,925.40 = 3,935.07/x
  3. Step 3: Cross multiply
    8,616.15x = 12,925.40 × 3,935.07
  4. Step 4: Simplify right side
    8,616.15x = 50,862,334.10
  5. Step 5: Solve for x
    x = 50,862,334.10/8,616.15
  6. Step 6: Final answer
    x = 5,903.14

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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.