Home / 13,505.42-20,258.14-3,645.66

Finding the Fourth Proportional to 13,505.42, 20,258.14 and 3,645.66

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Solution

The fourth proportional to 13,505.42, 20,258.14 and 3,645.66 is: 5,468.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.42 : 20,258.14 = 3,645.66 : x
  2. Step 2: Convert to fraction form
    13,505.42/20,258.14 = 3,645.66/x
  3. Step 3: Cross multiply
    13,505.42x = 20,258.14 × 3,645.66
  4. Step 4: Simplify right side
    13,505.42x = 73,854,290.67
  5. Step 5: Solve for x
    x = 73,854,290.67/13,505.42
  6. Step 6: Final answer
    x = 5,468.49

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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.