Home / 15,722.69-21,694.16-9,010.42

Finding the Fourth Proportional to 15,722.69, 21,694.16 and 9,010.42

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Solution

The fourth proportional to 15,722.69, 21,694.16 and 9,010.42 is: 12,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.69 : 21,694.16 = 9,010.42 : x
  2. Step 2: Convert to fraction form
    15,722.69/21,694.16 = 9,010.42/x
  3. Step 3: Cross multiply
    15,722.69x = 21,694.16 × 9,010.42
  4. Step 4: Simplify right side
    15,722.69x = 195,473,339.62
  5. Step 5: Solve for x
    x = 195,473,339.62/15,722.69
  6. Step 6: Final answer
    x = 12,432.57

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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.