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Finding the Fourth Proportional to 9,910.11, 14,788.59 and 8,805.69

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Solution

The fourth proportional to 9,910.11, 14,788.59 and 8,805.69 is: 13,140.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,910.11 : 14,788.59 = 8,805.69 : x
  2. Step 2: Convert to fraction form
    9,910.11/14,788.59 = 8,805.69/x
  3. Step 3: Cross multiply
    9,910.11x = 14,788.59 × 8,805.69
  4. Step 4: Simplify right side
    9,910.11x = 130,223,739.08
  5. Step 5: Solve for x
    x = 130,223,739.08/9,910.11
  6. Step 6: Final answer
    x = 13,140.49

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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.