Home / 9,956.72-13,731.24-8,177.84

Finding the Fourth Proportional to 9,956.72, 13,731.24 and 8,177.84

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Solution

The fourth proportional to 9,956.72, 13,731.24 and 8,177.84 is: 11,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.72 : 13,731.24 = 8,177.84 : x
  2. Step 2: Convert to fraction form
    9,956.72/13,731.24 = 8,177.84/x
  3. Step 3: Cross multiply
    9,956.72x = 13,731.24 × 8,177.84
  4. Step 4: Simplify right side
    9,956.72x = 112,291,883.72
  5. Step 5: Solve for x
    x = 112,291,883.72/9,956.72
  6. Step 6: Final answer
    x = 11,278.00

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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.