Home / 19,867.88-27,418.15-10,915.96

Finding the Fourth Proportional to 19,867.88, 27,418.15 and 10,915.96

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Solution

The fourth proportional to 19,867.88, 27,418.15 and 10,915.96 is: 15,064.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.88 : 27,418.15 = 10,915.96 : x
  2. Step 2: Convert to fraction form
    19,867.88/27,418.15 = 10,915.96/x
  3. Step 3: Cross multiply
    19,867.88x = 27,418.15 × 10,915.96
  4. Step 4: Simplify right side
    19,867.88x = 299,295,237.00
  5. Step 5: Solve for x
    x = 299,295,237.00/19,867.88
  6. Step 6: Final answer
    x = 15,064.28

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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.