Home / 12,374.13-18,536.43-7,441.05

Finding the Fourth Proportional to 12,374.13, 18,536.43 and 7,441.05

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Solution

The fourth proportional to 12,374.13, 18,536.43 and 7,441.05 is: 11,146.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.13 : 18,536.43 = 7,441.05 : x
  2. Step 2: Convert to fraction form
    12,374.13/18,536.43 = 7,441.05/x
  3. Step 3: Cross multiply
    12,374.13x = 18,536.43 × 7,441.05
  4. Step 4: Simplify right side
    12,374.13x = 137,930,502.45
  5. Step 5: Solve for x
    x = 137,930,502.45/12,374.13
  6. Step 6: Final answer
    x = 11,146.68

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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.