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Finding the Fourth Proportional to 8,703.02, 13,059.03 and 4,320.38

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Solution

The fourth proportional to 8,703.02, 13,059.03 and 4,320.38 is: 6,482.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.02 : 13,059.03 = 4,320.38 : x
  2. Step 2: Convert to fraction form
    8,703.02/13,059.03 = 4,320.38/x
  3. Step 3: Cross multiply
    8,703.02x = 13,059.03 × 4,320.38
  4. Step 4: Simplify right side
    8,703.02x = 56,419,972.03
  5. Step 5: Solve for x
    x = 56,419,972.03/8,703.02
  6. Step 6: Final answer
    x = 6,482.80

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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.