Home / 15,314.56-22,987.20-11,889.28

Finding the Fourth Proportional to 15,314.56, 22,987.20 and 11,889.28

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Solution

The fourth proportional to 15,314.56, 22,987.20 and 11,889.28 is: 17,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.56 : 22,987.20 = 11,889.28 : x
  2. Step 2: Convert to fraction form
    15,314.56/22,987.20 = 11,889.28/x
  3. Step 3: Cross multiply
    15,314.56x = 22,987.20 × 11,889.28
  4. Step 4: Simplify right side
    15,314.56x = 273,301,257.22
  5. Step 5: Solve for x
    x = 273,301,257.22/15,314.56
  6. Step 6: Final answer
    x = 17,845.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.