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Finding the Fourth Proportional to 9,887.81, 14,834.81 and 4,345.81

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Solution

The fourth proportional to 9,887.81, 14,834.81 and 4,345.81 is: 6,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,887.81 : 14,834.81 = 4,345.81 : x
  2. Step 2: Convert to fraction form
    9,887.81/14,834.81 = 4,345.81/x
  3. Step 3: Cross multiply
    9,887.81x = 14,834.81 × 4,345.81
  4. Step 4: Simplify right side
    9,887.81x = 64,469,239.42
  5. Step 5: Solve for x
    x = 64,469,239.42/9,887.81
  6. Step 6: Final answer
    x = 6,520.08

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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.