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Finding the Fourth Proportional to 9,898.15, 14,849.43 and 3,658.21

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Solution

The fourth proportional to 9,898.15, 14,849.43 and 3,658.21 is: 5,488.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,898.15 : 14,849.43 = 3,658.21 : x
  2. Step 2: Convert to fraction form
    9,898.15/14,849.43 = 3,658.21/x
  3. Step 3: Cross multiply
    9,898.15x = 14,849.43 × 3,658.21
  4. Step 4: Simplify right side
    9,898.15x = 54,322,366.01
  5. Step 5: Solve for x
    x = 54,322,366.01/9,898.15
  6. Step 6: Final answer
    x = 5,488.13

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1.5x scale

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.