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Finding the Fourth Proportional to 9,404.10, 14,021.10 and 8,918.10

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Solution

The fourth proportional to 9,404.10, 14,021.10 and 8,918.10 is: 13,296.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,404.10 : 14,021.10 = 8,918.10 : x
  2. Step 2: Convert to fraction form
    9,404.10/14,021.10 = 8,918.10/x
  3. Step 3: Cross multiply
    9,404.10x = 14,021.10 × 8,918.10
  4. Step 4: Simplify right side
    9,404.10x = 125,041,571.91
  5. Step 5: Solve for x
    x = 125,041,571.91/9,404.10
  6. Step 6: Final answer
    x = 13,296.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.