Home / 15,441.57-21,309.31-8,367.97

Finding the Fourth Proportional to 15,441.57, 21,309.31 and 8,367.97

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Solution

The fourth proportional to 15,441.57, 21,309.31 and 8,367.97 is: 11,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.57 : 21,309.31 = 8,367.97 : x
  2. Step 2: Convert to fraction form
    15,441.57/21,309.31 = 8,367.97/x
  3. Step 3: Cross multiply
    15,441.57x = 21,309.31 × 8,367.97
  4. Step 4: Simplify right side
    15,441.57x = 178,315,666.80
  5. Step 5: Solve for x
    x = 178,315,666.80/15,441.57
  6. Step 6: Final answer
    x = 11,547.77

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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.