Home / 19,867.70-27,416.82-10,915.10

Finding the Fourth Proportional to 19,867.70, 27,416.82 and 10,915.10

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Solution

The fourth proportional to 19,867.70, 27,416.82 and 10,915.10 is: 15,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.70 : 27,416.82 = 10,915.10 : x
  2. Step 2: Convert to fraction form
    19,867.70/27,416.82 = 10,915.10/x
  3. Step 3: Cross multiply
    19,867.70x = 27,416.82 × 10,915.10
  4. Step 4: Simplify right side
    19,867.70x = 299,257,331.98
  5. Step 5: Solve for x
    x = 299,257,331.98/19,867.70
  6. Step 6: Final answer
    x = 15,062.51

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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.