Home / 14,742.82-20,319.69-10,906.66

Finding the Fourth Proportional to 14,742.82, 20,319.69 and 10,906.66

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Solution

The fourth proportional to 14,742.82, 20,319.69 and 10,906.66 is: 15,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.82 : 20,319.69 = 10,906.66 : x
  2. Step 2: Convert to fraction form
    14,742.82/20,319.69 = 10,906.66/x
  3. Step 3: Cross multiply
    14,742.82x = 20,319.69 × 10,906.66
  4. Step 4: Simplify right side
    14,742.82x = 221,619,950.14
  5. Step 5: Solve for x
    x = 221,619,950.14/14,742.82
  6. Step 6: Final answer
    x = 15,032.40

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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.