Home / 13,099.28-18,072.36-8,061.68

Finding the Fourth Proportional to 13,099.28, 18,072.36 and 8,061.68

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Solution

The fourth proportional to 13,099.28, 18,072.36 and 8,061.68 is: 11,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.28 : 18,072.36 = 8,061.68 : x
  2. Step 2: Convert to fraction form
    13,099.28/18,072.36 = 8,061.68/x
  3. Step 3: Cross multiply
    13,099.28x = 18,072.36 × 8,061.68
  4. Step 4: Simplify right side
    13,099.28x = 145,693,583.16
  5. Step 5: Solve for x
    x = 145,693,583.16/13,099.28
  6. Step 6: Final answer
    x = 11,122.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.