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Finding the Fourth Proportional to 7,153.07, 9,871.11 and 4,169.03

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Solution

The fourth proportional to 7,153.07, 9,871.11 and 4,169.03 is: 5,753.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.07 : 9,871.11 = 4,169.03 : x
  2. Step 2: Convert to fraction form
    7,153.07/9,871.11 = 4,169.03/x
  3. Step 3: Cross multiply
    7,153.07x = 9,871.11 × 4,169.03
  4. Step 4: Simplify right side
    7,153.07x = 41,152,904.37
  5. Step 5: Solve for x
    x = 41,152,904.37/7,153.07
  6. Step 6: Final answer
    x = 5,753.18

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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.