Home / 9,027.20-12,460.95-8,081.28

Finding the Fourth Proportional to 9,027.20, 12,460.95 and 8,081.28

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Solution

The fourth proportional to 9,027.20, 12,460.95 and 8,081.28 is: 11,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,027.20 : 12,460.95 = 8,081.28 : x
  2. Step 2: Convert to fraction form
    9,027.20/12,460.95 = 8,081.28/x
  3. Step 3: Cross multiply
    9,027.20x = 12,460.95 × 8,081.28
  4. Step 4: Simplify right side
    9,027.20x = 100,700,426.02
  5. Step 5: Solve for x
    x = 100,700,426.02/9,027.20
  6. Step 6: Final answer
    x = 11,155.22

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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.