Home / 13,365.18-18,444.21-7,396.68

Finding the Fourth Proportional to 13,365.18, 18,444.21 and 7,396.68

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Solution

The fourth proportional to 13,365.18, 18,444.21 and 7,396.68 is: 10,207.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,365.18 : 18,444.21 = 7,396.68 : x
  2. Step 2: Convert to fraction form
    13,365.18/18,444.21 = 7,396.68/x
  3. Step 3: Cross multiply
    13,365.18x = 18,444.21 × 7,396.68
  4. Step 4: Simplify right side
    13,365.18x = 136,425,919.22
  5. Step 5: Solve for x
    x = 136,425,919.22/13,365.18
  6. Step 6: Final answer
    x = 10,207.56

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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.