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Finding the Fourth Proportional to 9,984.92, 14,944.55 and 8,891.42

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Solution

The fourth proportional to 9,984.92, 14,944.55 and 8,891.42 is: 13,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984.92 : 14,944.55 = 8,891.42 : x
  2. Step 2: Convert to fraction form
    9,984.92/14,944.55 = 8,891.42/x
  3. Step 3: Cross multiply
    9,984.92x = 14,944.55 × 8,891.42
  4. Step 4: Simplify right side
    9,984.92x = 132,878,151.58
  5. Step 5: Solve for x
    x = 132,878,151.58/9,984.92
  6. Step 6: Final answer
    x = 13,307.89

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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.