Home / 13,478.60-20,196.30-8,856.20

Finding the Fourth Proportional to 13,478.60, 20,196.30 and 8,856.20

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Solution

The fourth proportional to 13,478.60, 20,196.30 and 8,856.20 is: 13,270.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.60 : 20,196.30 = 8,856.20 : x
  2. Step 2: Convert to fraction form
    13,478.60/20,196.30 = 8,856.20/x
  3. Step 3: Cross multiply
    13,478.60x = 20,196.30 × 8,856.20
  4. Step 4: Simplify right side
    13,478.60x = 178,862,472.06
  5. Step 5: Solve for x
    x = 178,862,472.06/13,478.60
  6. Step 6: Final answer
    x = 13,270.11

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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.