Home / 11,302.72-16,955.21-4,188.87

Finding the Fourth Proportional to 11,302.72, 16,955.21 and 4,188.87

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Solution

The fourth proportional to 11,302.72, 16,955.21 and 4,188.87 is: 6,283.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,302.72 : 16,955.21 = 4,188.87 : x
  2. Step 2: Convert to fraction form
    11,302.72/16,955.21 = 4,188.87/x
  3. Step 3: Cross multiply
    11,302.72x = 16,955.21 × 4,188.87
  4. Step 4: Simplify right side
    11,302.72x = 71,023,170.51
  5. Step 5: Solve for x
    x = 71,023,170.51/11,302.72
  6. Step 6: Final answer
    x = 6,283.72

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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.