Home / 7,116.17-9,816.23-4,131.63

Finding the Fourth Proportional to 7,116.17, 9,816.23 and 4,131.63

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Solution

The fourth proportional to 7,116.17, 9,816.23 and 4,131.63 is: 5,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.17 : 9,816.23 = 4,131.63 : x
  2. Step 2: Convert to fraction form
    7,116.17/9,816.23 = 4,131.63/x
  3. Step 3: Cross multiply
    7,116.17x = 9,816.23 × 4,131.63
  4. Step 4: Simplify right side
    7,116.17x = 40,557,009.70
  5. Step 5: Solve for x
    x = 40,557,009.70/7,116.17
  6. Step 6: Final answer
    x = 5,699.28

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.