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Finding the Fourth Proportional to 7,195.44, 9,871.23 and 7,127.40

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Solution

The fourth proportional to 7,195.44, 9,871.23 and 7,127.40 is: 9,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,195.44 : 9,871.23 = 7,127.40 : x
  2. Step 2: Convert to fraction form
    7,195.44/9,871.23 = 7,127.40/x
  3. Step 3: Cross multiply
    7,195.44x = 9,871.23 × 7,127.40
  4. Step 4: Simplify right side
    7,195.44x = 70,356,204.70
  5. Step 5: Solve for x
    x = 70,356,204.70/7,195.44
  6. Step 6: Final answer
    x = 9,777.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.