Home / 13,256.12-19,876.20-5,856.80

Finding the Fourth Proportional to 13,256.12, 19,876.20 and 5,856.80

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Solution

The fourth proportional to 13,256.12, 19,876.20 and 5,856.80 is: 8,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.12 : 19,876.20 = 5,856.80 : x
  2. Step 2: Convert to fraction form
    13,256.12/19,876.20 = 5,856.80/x
  3. Step 3: Cross multiply
    13,256.12x = 19,876.20 × 5,856.80
  4. Step 4: Simplify right side
    13,256.12x = 116,410,928.16
  5. Step 5: Solve for x
    x = 116,410,928.16/13,256.12
  6. Step 6: Final answer
    x = 8,781.67

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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.