Home / 14,207.36-21,312.12-7,286.72

Finding the Fourth Proportional to 14,207.36, 21,312.12 and 7,286.72

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Solution

The fourth proportional to 14,207.36, 21,312.12 and 7,286.72 is: 10,930.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,207.36 : 21,312.12 = 7,286.72 : x
  2. Step 2: Convert to fraction form
    14,207.36/21,312.12 = 7,286.72/x
  3. Step 3: Cross multiply
    14,207.36x = 21,312.12 × 7,286.72
  4. Step 4: Simplify right side
    14,207.36x = 155,295,451.05
  5. Step 5: Solve for x
    x = 155,295,451.05/14,207.36
  6. Step 6: Final answer
    x = 10,930.63

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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.