Home / 12,288.56-16,944.80-8,302.74

Finding the Fourth Proportional to 12,288.56, 16,944.80 and 8,302.74

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Solution

The fourth proportional to 12,288.56, 16,944.80 and 8,302.74 is: 11,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.56 : 16,944.80 = 8,302.74 : x
  2. Step 2: Convert to fraction form
    12,288.56/16,944.80 = 8,302.74/x
  3. Step 3: Cross multiply
    12,288.56x = 16,944.80 × 8,302.74
  4. Step 4: Simplify right side
    12,288.56x = 140,688,268.75
  5. Step 5: Solve for x
    x = 140,688,268.75/12,288.56
  6. Step 6: Final answer
    x = 11,448.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.