Home / 15,256.35-21,052.61-8,540.44

Finding the Fourth Proportional to 15,256.35, 21,052.61 and 8,540.44

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Solution

The fourth proportional to 15,256.35, 21,052.61 and 8,540.44 is: 11,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.35 : 21,052.61 = 8,540.44 : x
  2. Step 2: Convert to fraction form
    15,256.35/21,052.61 = 8,540.44/x
  3. Step 3: Cross multiply
    15,256.35x = 21,052.61 × 8,540.44
  4. Step 4: Simplify right side
    15,256.35x = 179,798,489.24
  5. Step 5: Solve for x
    x = 179,798,489.24/15,256.35
  6. Step 6: Final answer
    x = 11,785.16

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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.