Home / 13,489.20-20,233.80-4,722.98

Finding the Fourth Proportional to 13,489.20, 20,233.80 and 4,722.98

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Solution

The fourth proportional to 13,489.20, 20,233.80 and 4,722.98 is: 7,084.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.20 : 20,233.80 = 4,722.98 : x
  2. Step 2: Convert to fraction form
    13,489.20/20,233.80 = 4,722.98/x
  3. Step 3: Cross multiply
    13,489.20x = 20,233.80 × 4,722.98
  4. Step 4: Simplify right side
    13,489.20x = 95,563,731.56
  5. Step 5: Solve for x
    x = 95,563,731.56/13,489.20
  6. Step 6: Final answer
    x = 7,084.46

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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.