Home / 12,288.08-18,432.12-3,054.08

Finding the Fourth Proportional to 12,288.08, 18,432.12 and 3,054.08

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Solution

The fourth proportional to 12,288.08, 18,432.12 and 3,054.08 is: 4,581.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.08 : 18,432.12 = 3,054.08 : x
  2. Step 2: Convert to fraction form
    12,288.08/18,432.12 = 3,054.08/x
  3. Step 3: Cross multiply
    12,288.08x = 18,432.12 × 3,054.08
  4. Step 4: Simplify right side
    12,288.08x = 56,293,169.05
  5. Step 5: Solve for x
    x = 56,293,169.05/12,288.08
  6. Step 6: Final answer
    x = 4,581.12

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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.