Home / 19,867.92-27,418.32-10,915.98

Finding the Fourth Proportional to 19,867.92, 27,418.32 and 10,915.98

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Solution

The fourth proportional to 19,867.92, 27,418.32 and 10,915.98 is: 15,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.92 : 27,418.32 = 10,915.98 : x
  2. Step 2: Convert to fraction form
    19,867.92/27,418.32 = 10,915.98/x
  3. Step 3: Cross multiply
    19,867.92x = 27,418.32 × 10,915.98
  4. Step 4: Simplify right side
    19,867.92x = 299,297,832.75
  5. Step 5: Solve for x
    x = 299,297,832.75/19,867.92
  6. Step 6: Final answer
    x = 15,064.38

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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.