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Finding the Fourth Proportional to 13,062.77, 18,027.24 and 8,027.20

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Solution

The fourth proportional to 13,062.77, 18,027.24 and 8,027.20 is: 11,077.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.77 : 18,027.24 = 8,027.20 : x
  2. Step 2: Convert to fraction form
    13,062.77/18,027.24 = 8,027.20/x
  3. Step 3: Cross multiply
    13,062.77x = 18,027.24 × 8,027.20
  4. Step 4: Simplify right side
    13,062.77x = 144,708,170.79
  5. Step 5: Solve for x
    x = 144,708,170.79/13,062.77
  6. Step 6: Final answer
    x = 11,077.91

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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.