Home / 9,841.76-13,579.80-7,191.44

Finding the Fourth Proportional to 9,841.76, 13,579.80 and 7,191.44

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Solution

The fourth proportional to 9,841.76, 13,579.80 and 7,191.44 is: 9,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,841.76 : 13,579.80 = 7,191.44 : x
  2. Step 2: Convert to fraction form
    9,841.76/13,579.80 = 7,191.44/x
  3. Step 3: Cross multiply
    9,841.76x = 13,579.80 × 7,191.44
  4. Step 4: Simplify right side
    9,841.76x = 97,658,316.91
  5. Step 5: Solve for x
    x = 97,658,316.91/9,841.76
  6. Step 6: Final answer
    x = 9,922.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.