Home / 13,459.26-20,190.23-5,146.27

Finding the Fourth Proportional to 13,459.26, 20,190.23 and 5,146.27

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Solution

The fourth proportional to 13,459.26, 20,190.23 and 5,146.27 is: 7,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.26 : 20,190.23 = 5,146.27 : x
  2. Step 2: Convert to fraction form
    13,459.26/20,190.23 = 5,146.27/x
  3. Step 3: Cross multiply
    13,459.26x = 20,190.23 × 5,146.27
  4. Step 4: Simplify right side
    13,459.26x = 103,904,248.26
  5. Step 5: Solve for x
    x = 103,904,248.26/13,459.26
  6. Step 6: Final answer
    x = 7,719.91

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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.