Home / 13,908.99-19,188.32-8,316.75

Finding the Fourth Proportional to 13,908.99, 19,188.32 and 8,316.75

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Solution

The fourth proportional to 13,908.99, 19,188.32 and 8,316.75 is: 11,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.99 : 19,188.32 = 8,316.75 : x
  2. Step 2: Convert to fraction form
    13,908.99/19,188.32 = 8,316.75/x
  3. Step 3: Cross multiply
    13,908.99x = 19,188.32 × 8,316.75
  4. Step 4: Simplify right side
    13,908.99x = 159,584,418.78
  5. Step 5: Solve for x
    x = 159,584,418.78/13,908.99
  6. Step 6: Final answer
    x = 11,473.47

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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.