Home / 13,856.83-19,119.90-8,192.50

Finding the Fourth Proportional to 13,856.83, 19,119.90 and 8,192.50

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Solution

The fourth proportional to 13,856.83, 19,119.90 and 8,192.50 is: 11,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.83 : 19,119.90 = 8,192.50 : x
  2. Step 2: Convert to fraction form
    13,856.83/19,119.90 = 8,192.50/x
  3. Step 3: Cross multiply
    13,856.83x = 19,119.90 × 8,192.50
  4. Step 4: Simplify right side
    13,856.83x = 156,639,780.75
  5. Step 5: Solve for x
    x = 156,639,780.75/13,856.83
  6. Step 6: Final answer
    x = 11,304.16

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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.