Home / 12,256.11-18,386.55-3,935.49

Finding the Fourth Proportional to 12,256.11, 18,386.55 and 3,935.49

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Solution

The fourth proportional to 12,256.11, 18,386.55 and 3,935.49 is: 5,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.11 : 18,386.55 = 3,935.49 : x
  2. Step 2: Convert to fraction form
    12,256.11/18,386.55 = 3,935.49/x
  3. Step 3: Cross multiply
    12,256.11x = 18,386.55 × 3,935.49
  4. Step 4: Simplify right side
    12,256.11x = 72,360,083.66
  5. Step 5: Solve for x
    x = 72,360,083.66/12,256.11
  6. Step 6: Final answer
    x = 5,904.00

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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.