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Finding the Fourth Proportional to 11,392.56, 15,722.02 and 6,357.75

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Solution

The fourth proportional to 11,392.56, 15,722.02 and 6,357.75 is: 8,773.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.56 : 15,722.02 = 6,357.75 : x
  2. Step 2: Convert to fraction form
    11,392.56/15,722.02 = 6,357.75/x
  3. Step 3: Cross multiply
    11,392.56x = 15,722.02 × 6,357.75
  4. Step 4: Simplify right side
    11,392.56x = 99,956,750.07
  5. Step 5: Solve for x
    x = 99,956,750.07/11,392.56
  6. Step 6: Final answer
    x = 8,773.86

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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.