Home / 13,856.14-19,114.62-8,188.15

Finding the Fourth Proportional to 13,856.14, 19,114.62 and 8,188.15

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Solution

The fourth proportional to 13,856.14, 19,114.62 and 8,188.15 is: 11,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.14 : 19,114.62 = 8,188.15 : x
  2. Step 2: Convert to fraction form
    13,856.14/19,114.62 = 8,188.15/x
  3. Step 3: Cross multiply
    13,856.14x = 19,114.62 × 8,188.15
  4. Step 4: Simplify right side
    13,856.14x = 156,513,280.18
  5. Step 5: Solve for x
    x = 156,513,280.18/13,856.14
  6. Step 6: Final answer
    x = 11,295.59

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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.