Home / 14,289.66-21,454.18-7,274.42

Finding the Fourth Proportional to 14,289.66, 21,454.18 and 7,274.42

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Solution

The fourth proportional to 14,289.66, 21,454.18 and 7,274.42 is: 10,921.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,289.66 : 21,454.18 = 7,274.42 : x
  2. Step 2: Convert to fraction form
    14,289.66/21,454.18 = 7,274.42/x
  3. Step 3: Cross multiply
    14,289.66x = 21,454.18 × 7,274.42
  4. Step 4: Simplify right side
    14,289.66x = 156,066,716.08
  5. Step 5: Solve for x
    x = 156,066,716.08/14,289.66
  6. Step 6: Final answer
    x = 10,921.65

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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.