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Finding the Fourth Proportional to 8,647.53, 12,950.49 and 4,938.51

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Solution

The fourth proportional to 8,647.53, 12,950.49 and 4,938.51 is: 7,395.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.53 : 12,950.49 = 4,938.51 : x
  2. Step 2: Convert to fraction form
    8,647.53/12,950.49 = 4,938.51/x
  3. Step 3: Cross multiply
    8,647.53x = 12,950.49 × 4,938.51
  4. Step 4: Simplify right side
    8,647.53x = 63,956,124.37
  5. Step 5: Solve for x
    x = 63,956,124.37/8,647.53
  6. Step 6: Final answer
    x = 7,395.88

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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.