Home / 18,915.36-26,102.97-10,417.30

Finding the Fourth Proportional to 18,915.36, 26,102.97 and 10,417.30

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Solution

The fourth proportional to 18,915.36, 26,102.97 and 10,417.30 is: 14,375.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.36 : 26,102.97 = 10,417.30 : x
  2. Step 2: Convert to fraction form
    18,915.36/26,102.97 = 10,417.30/x
  3. Step 3: Cross multiply
    18,915.36x = 26,102.97 × 10,417.30
  4. Step 4: Simplify right side
    18,915.36x = 271,922,469.38
  5. Step 5: Solve for x
    x = 271,922,469.38/18,915.36
  6. Step 6: Final answer
    x = 14,375.75

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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.