Home / 14,171.72-21,251.43-4,308.69

Finding the Fourth Proportional to 14,171.72, 21,251.43 and 4,308.69

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Solution

The fourth proportional to 14,171.72, 21,251.43 and 4,308.69 is: 6,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,171.72 : 21,251.43 = 4,308.69 : x
  2. Step 2: Convert to fraction form
    14,171.72/21,251.43 = 4,308.69/x
  3. Step 3: Cross multiply
    14,171.72x = 21,251.43 × 4,308.69
  4. Step 4: Simplify right side
    14,171.72x = 91,565,823.93
  5. Step 5: Solve for x
    x = 91,565,823.93/14,171.72
  6. Step 6: Final answer
    x = 6,461.17

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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.