Home / 13,191.60-19,790.34-4,426.28

Finding the Fourth Proportional to 13,191.60, 19,790.34 and 4,426.28

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Solution

The fourth proportional to 13,191.60, 19,790.34 and 4,426.28 is: 6,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.60 : 19,790.34 = 4,426.28 : x
  2. Step 2: Convert to fraction form
    13,191.60/19,790.34 = 4,426.28/x
  3. Step 3: Cross multiply
    13,191.60x = 19,790.34 × 4,426.28
  4. Step 4: Simplify right side
    13,191.60x = 87,597,586.14
  5. Step 5: Solve for x
    x = 87,597,586.14/13,191.60
  6. Step 6: Final answer
    x = 6,640.41

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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.