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Finding the Fourth Proportional to 8,603.50, 11,873.02 and 4,877.50

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Solution

The fourth proportional to 8,603.50, 11,873.02 and 4,877.50 is: 6,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.50 : 11,873.02 = 4,877.50 : x
  2. Step 2: Convert to fraction form
    8,603.50/11,873.02 = 4,877.50/x
  3. Step 3: Cross multiply
    8,603.50x = 11,873.02 × 4,877.50
  4. Step 4: Simplify right side
    8,603.50x = 57,910,655.05
  5. Step 5: Solve for x
    x = 57,910,655.05/8,603.50
  6. Step 6: Final answer
    x = 6,731.06

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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.