Home / 13,160.96-18,161.36-7,192.68

Finding the Fourth Proportional to 13,160.96, 18,161.36 and 7,192.68

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Solution

The fourth proportional to 13,160.96, 18,161.36 and 7,192.68 is: 9,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.96 : 18,161.36 = 7,192.68 : x
  2. Step 2: Convert to fraction form
    13,160.96/18,161.36 = 7,192.68/x
  3. Step 3: Cross multiply
    13,160.96x = 18,161.36 × 7,192.68
  4. Step 4: Simplify right side
    13,160.96x = 130,628,850.84
  5. Step 5: Solve for x
    x = 130,628,850.84/13,160.96
  6. Step 6: Final answer
    x = 9,925.48

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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.