Home / 12,305.84-18,447.36-4,908.48

Finding the Fourth Proportional to 12,305.84, 18,447.36 and 4,908.48

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Solution

The fourth proportional to 12,305.84, 18,447.36 and 4,908.48 is: 7,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.84 : 18,447.36 = 4,908.48 : x
  2. Step 2: Convert to fraction form
    12,305.84/18,447.36 = 4,908.48/x
  3. Step 3: Cross multiply
    12,305.84x = 18,447.36 × 4,908.48
  4. Step 4: Simplify right side
    12,305.84x = 90,548,497.61
  5. Step 5: Solve for x
    x = 90,548,497.61/12,305.84
  6. Step 6: Final answer
    x = 7,358.17

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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.