Home / 12,178.04-18,264.62-3,856.64

Finding the Fourth Proportional to 12,178.04, 18,264.62 and 3,856.64

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Solution

The fourth proportional to 12,178.04, 18,264.62 and 3,856.64 is: 5,784.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.04 : 18,264.62 = 3,856.64 : x
  2. Step 2: Convert to fraction form
    12,178.04/18,264.62 = 3,856.64/x
  3. Step 3: Cross multiply
    12,178.04x = 18,264.62 × 3,856.64
  4. Step 4: Simplify right side
    12,178.04x = 70,440,064.08
  5. Step 5: Solve for x
    x = 70,440,064.08/12,178.04
  6. Step 6: Final answer
    x = 5,784.19

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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.