Home / 13,965.16-19,273.60-7,998.76

Finding the Fourth Proportional to 13,965.16, 19,273.60 and 7,998.76

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Solution

The fourth proportional to 13,965.16, 19,273.60 and 7,998.76 is: 11,039.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.16 : 19,273.60 = 7,998.76 : x
  2. Step 2: Convert to fraction form
    13,965.16/19,273.60 = 7,998.76/x
  3. Step 3: Cross multiply
    13,965.16x = 19,273.60 × 7,998.76
  4. Step 4: Simplify right side
    13,965.16x = 154,164,900.74
  5. Step 5: Solve for x
    x = 154,164,900.74/13,965.16
  6. Step 6: Final answer
    x = 11,039.25

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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.