Home / 19,915.53-27,483.77-11,419.03

Finding the Fourth Proportional to 19,915.53, 27,483.77 and 11,419.03

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Solution

The fourth proportional to 19,915.53, 27,483.77 and 11,419.03 is: 15,758.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.53 : 27,483.77 = 11,419.03 : x
  2. Step 2: Convert to fraction form
    19,915.53/27,483.77 = 11,419.03/x
  3. Step 3: Cross multiply
    19,915.53x = 27,483.77 × 11,419.03
  4. Step 4: Simplify right side
    19,915.53x = 313,838,057.05
  5. Step 5: Solve for x
    x = 313,838,057.05/19,915.53
  6. Step 6: Final answer
    x = 15,758.46

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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.