Home / 13,083.36-18,054.99-7,114.92

Finding the Fourth Proportional to 13,083.36, 18,054.99 and 7,114.92

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Solution

The fourth proportional to 13,083.36, 18,054.99 and 7,114.92 is: 9,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.36 : 18,054.99 = 7,114.92 : x
  2. Step 2: Convert to fraction form
    13,083.36/18,054.99 = 7,114.92/x
  3. Step 3: Cross multiply
    13,083.36x = 18,054.99 × 7,114.92
  4. Step 4: Simplify right side
    13,083.36x = 128,459,809.45
  5. Step 5: Solve for x
    x = 128,459,809.45/13,083.36
  6. Step 6: Final answer
    x = 9,818.56

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Half scale
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Double scale
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Similar ratio
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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.