Home / 19,867.03-27,416.99-10,915.11

Finding the Fourth Proportional to 19,867.03, 27,416.99 and 10,915.11

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Solution

The fourth proportional to 19,867.03, 27,416.99 and 10,915.11 is: 15,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,867.03 : 27,416.99 = 10,915.11 : x
  2. Step 2: Convert to fraction form
    19,867.03/27,416.99 = 10,915.11/x
  3. Step 3: Cross multiply
    19,867.03x = 27,416.99 × 10,915.11
  4. Step 4: Simplify right side
    19,867.03x = 299,259,489.01
  5. Step 5: Solve for x
    x = 299,259,489.01/19,867.03
  6. Step 6: Final answer
    x = 15,063.12

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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.