Home / 15,447.97-21,318.70-8,549.22

Finding the Fourth Proportional to 15,447.97, 21,318.70 and 8,549.22

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Solution

The fourth proportional to 15,447.97, 21,318.70 and 8,549.22 is: 11,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.97 : 21,318.70 = 8,549.22 : x
  2. Step 2: Convert to fraction form
    15,447.97/21,318.70 = 8,549.22/x
  3. Step 3: Cross multiply
    15,447.97x = 21,318.70 × 8,549.22
  4. Step 4: Simplify right side
    15,447.97x = 182,258,256.41
  5. Step 5: Solve for x
    x = 182,258,256.41/15,447.97
  6. Step 6: Final answer
    x = 11,798.20

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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.