Home / 19,860.05-27,409.30-11,476.55

Finding the Fourth Proportional to 19,860.05, 27,409.30 and 11,476.55

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Solution

The fourth proportional to 19,860.05, 27,409.30 and 11,476.55 is: 15,839.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,860.05 : 27,409.30 = 11,476.55 : x
  2. Step 2: Convert to fraction form
    19,860.05/27,409.30 = 11,476.55/x
  3. Step 3: Cross multiply
    19,860.05x = 27,409.30 × 11,476.55
  4. Step 4: Simplify right side
    19,860.05x = 314,564,241.75
  5. Step 5: Solve for x
    x = 314,564,241.75/19,860.05
  6. Step 6: Final answer
    x = 15,839.04

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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.