Home / 13,150.12-18,146.66-7,484.12

Finding the Fourth Proportional to 13,150.12, 18,146.66 and 7,484.12

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Solution

The fourth proportional to 13,150.12, 18,146.66 and 7,484.12 is: 10,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.12 : 18,146.66 = 7,484.12 : x
  2. Step 2: Convert to fraction form
    13,150.12/18,146.66 = 7,484.12/x
  3. Step 3: Cross multiply
    13,150.12x = 18,146.66 × 7,484.12
  4. Step 4: Simplify right side
    13,150.12x = 135,811,781.04
  5. Step 5: Solve for x
    x = 135,811,781.04/13,150.12
  6. Step 6: Final answer
    x = 10,327.80

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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.