Home / 15,469.15-21,347.42-8,754.66

Finding the Fourth Proportional to 15,469.15, 21,347.42 and 8,754.66

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Solution

The fourth proportional to 15,469.15, 21,347.42 and 8,754.66 is: 12,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469.15 : 21,347.42 = 8,754.66 : x
  2. Step 2: Convert to fraction form
    15,469.15/21,347.42 = 8,754.66/x
  3. Step 3: Cross multiply
    15,469.15x = 21,347.42 × 8,754.66
  4. Step 4: Simplify right side
    15,469.15x = 186,889,280.15
  5. Step 5: Solve for x
    x = 186,889,280.15/15,469.15
  6. Step 6: Final answer
    x = 12,081.42

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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.