Home / 13,904.13-20,856.19-5,584.14

Finding the Fourth Proportional to 13,904.13, 20,856.19 and 5,584.14

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Solution

The fourth proportional to 13,904.13, 20,856.19 and 5,584.14 is: 8,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.13 : 20,856.19 = 5,584.14 : x
  2. Step 2: Convert to fraction form
    13,904.13/20,856.19 = 5,584.14/x
  3. Step 3: Cross multiply
    13,904.13x = 20,856.19 × 5,584.14
  4. Step 4: Simplify right side
    13,904.13x = 116,463,961.47
  5. Step 5: Solve for x
    x = 116,463,961.47/13,904.13
  6. Step 6: Final answer
    x = 8,376.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.