Home / 11,877.18-17,815.40-4,951.50

Finding the Fourth Proportional to 11,877.18, 17,815.40 and 4,951.50

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Solution

The fourth proportional to 11,877.18, 17,815.40 and 4,951.50 is: 7,427.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.18 : 17,815.40 = 4,951.50 : x
  2. Step 2: Convert to fraction form
    11,877.18/17,815.40 = 4,951.50/x
  3. Step 3: Cross multiply
    11,877.18x = 17,815.40 × 4,951.50
  4. Step 4: Simplify right side
    11,877.18x = 88,212,953.10
  5. Step 5: Solve for x
    x = 88,212,953.10/11,877.18
  6. Step 6: Final answer
    x = 7,427.10

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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.