Home / 12,187.06-18,273.68-4,787.48

Finding the Fourth Proportional to 12,187.06, 18,273.68 and 4,787.48

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Solution

The fourth proportional to 12,187.06, 18,273.68 and 4,787.48 is: 7,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.06 : 18,273.68 = 4,787.48 : x
  2. Step 2: Convert to fraction form
    12,187.06/18,273.68 = 4,787.48/x
  3. Step 3: Cross multiply
    12,187.06x = 18,273.68 × 4,787.48
  4. Step 4: Simplify right side
    12,187.06x = 87,484,877.53
  5. Step 5: Solve for x
    x = 87,484,877.53/12,187.06
  6. Step 6: Final answer
    x = 7,178.51

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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.