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Finding the Fourth Proportional to 17,987.68, 24,806.28 and 11,927.28

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Solution

The fourth proportional to 17,987.68, 24,806.28 and 11,927.28 is: 16,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.68 : 24,806.28 = 11,927.28 : x
  2. Step 2: Convert to fraction form
    17,987.68/24,806.28 = 11,927.28/x
  3. Step 3: Cross multiply
    17,987.68x = 24,806.28 × 11,927.28
  4. Step 4: Simplify right side
    17,987.68x = 295,871,447.32
  5. Step 5: Solve for x
    x = 295,871,447.32/17,987.68
  6. Step 6: Final answer
    x = 16,448.56

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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.