Home / 12,288.19-18,432.28-3,054.19

Finding the Fourth Proportional to 12,288.19, 18,432.28 and 3,054.19

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Solution

The fourth proportional to 12,288.19, 18,432.28 and 3,054.19 is: 4,581.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.19 : 18,432.28 = 3,054.19 : x
  2. Step 2: Convert to fraction form
    12,288.19/18,432.28 = 3,054.19/x
  3. Step 3: Cross multiply
    12,288.19x = 18,432.28 × 3,054.19
  4. Step 4: Simplify right side
    12,288.19x = 56,295,685.25
  5. Step 5: Solve for x
    x = 56,295,685.25/12,288.19
  6. Step 6: Final answer
    x = 4,581.28

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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.