Home / 12,288.06-18,432.03-4,890.54

Finding the Fourth Proportional to 12,288.06, 18,432.03 and 4,890.54

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Solution

The fourth proportional to 12,288.06, 18,432.03 and 4,890.54 is: 7,335.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.06 : 18,432.03 = 4,890.54 : x
  2. Step 2: Convert to fraction form
    12,288.06/18,432.03 = 4,890.54/x
  3. Step 3: Cross multiply
    12,288.06x = 18,432.03 × 4,890.54
  4. Step 4: Simplify right side
    12,288.06x = 90,142,580.00
  5. Step 5: Solve for x
    x = 90,142,580.00/12,288.06
  6. Step 6: Final answer
    x = 7,335.79

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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.