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Finding the Fourth Proportional to 7,901.17, 10,843.43 and 7,153.49

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Solution

The fourth proportional to 7,901.17, 10,843.43 and 7,153.49 is: 9,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.17 : 10,843.43 = 7,153.49 : x
  2. Step 2: Convert to fraction form
    7,901.17/10,843.43 = 7,153.49/x
  3. Step 3: Cross multiply
    7,901.17x = 10,843.43 × 7,153.49
  4. Step 4: Simplify right side
    7,901.17x = 77,568,368.07
  5. Step 5: Solve for x
    x = 77,568,368.07/7,901.17
  6. Step 6: Final answer
    x = 9,817.33

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Half scale
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Double scale
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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.