Home / 11,687.18-17,533.09-4,188.72

Finding the Fourth Proportional to 11,687.18, 17,533.09 and 4,188.72

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Solution

The fourth proportional to 11,687.18, 17,533.09 and 4,188.72 is: 6,283.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,687.18 : 17,533.09 = 4,188.72 : x
  2. Step 2: Convert to fraction form
    11,687.18/17,533.09 = 4,188.72/x
  3. Step 3: Cross multiply
    11,687.18x = 17,533.09 × 4,188.72
  4. Step 4: Simplify right side
    11,687.18x = 73,441,275.73
  5. Step 5: Solve for x
    x = 73,441,275.73/11,687.18
  6. Step 6: Final answer
    x = 6,283.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.