Home / 15,444.78-21,313.80-8,371.23

Finding the Fourth Proportional to 15,444.78, 21,313.80 and 8,371.23

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Solution

The fourth proportional to 15,444.78, 21,313.80 and 8,371.23 is: 11,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.78 : 21,313.80 = 8,371.23 : x
  2. Step 2: Convert to fraction form
    15,444.78/21,313.80 = 8,371.23/x
  3. Step 3: Cross multiply
    15,444.78x = 21,313.80 × 8,371.23
  4. Step 4: Simplify right side
    15,444.78x = 178,422,721.97
  5. Step 5: Solve for x
    x = 178,422,721.97/15,444.78
  6. Step 6: Final answer
    x = 11,552.30

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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.