Home / 13,149.03-18,146.12-7,484.64

Finding the Fourth Proportional to 13,149.03, 18,146.12 and 7,484.64

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Solution

The fourth proportional to 13,149.03, 18,146.12 and 7,484.64 is: 10,329.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.03 : 18,146.12 = 7,484.64 : x
  2. Step 2: Convert to fraction form
    13,149.03/18,146.12 = 7,484.64/x
  3. Step 3: Cross multiply
    13,149.03x = 18,146.12 × 7,484.64
  4. Step 4: Simplify right side
    13,149.03x = 135,817,175.60
  5. Step 5: Solve for x
    x = 135,817,175.60/13,149.03
  6. Step 6: Final answer
    x = 10,329.06

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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.