Home / 13,439.01-20,099.57-11,968.61

Finding the Fourth Proportional to 13,439.01, 20,099.57 and 11,968.61

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Solution

The fourth proportional to 13,439.01, 20,099.57 and 11,968.61 is: 17,900.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,439.01 : 20,099.57 = 11,968.61 : x
  2. Step 2: Convert to fraction form
    13,439.01/20,099.57 = 11,968.61/x
  3. Step 3: Cross multiply
    13,439.01x = 20,099.57 × 11,968.61
  4. Step 4: Simplify right side
    13,439.01x = 240,563,754.16
  5. Step 5: Solve for x
    x = 240,563,754.16/13,439.01
  6. Step 6: Final answer
    x = 17,900.41

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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.