Home / 15,214.74-21,000.36-9,249.66

Finding the Fourth Proportional to 15,214.74, 21,000.36 and 9,249.66

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Solution

The fourth proportional to 15,214.74, 21,000.36 and 9,249.66 is: 12,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,214.74 : 21,000.36 = 9,249.66 : x
  2. Step 2: Convert to fraction form
    15,214.74/21,000.36 = 9,249.66/x
  3. Step 3: Cross multiply
    15,214.74x = 21,000.36 × 9,249.66
  4. Step 4: Simplify right side
    15,214.74x = 194,246,189.88
  5. Step 5: Solve for x
    x = 194,246,189.88/15,214.74
  6. Step 6: Final answer
    x = 12,766.97

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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.