Home / 15,255.01-21,050.44-8,540.11

Finding the Fourth Proportional to 15,255.01, 21,050.44 and 8,540.11

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Solution

The fourth proportional to 15,255.01, 21,050.44 and 8,540.11 is: 11,784.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.01 : 21,050.44 = 8,540.11 : x
  2. Step 2: Convert to fraction form
    15,255.01/21,050.44 = 8,540.11/x
  3. Step 3: Cross multiply
    15,255.01x = 21,050.44 × 8,540.11
  4. Step 4: Simplify right side
    15,255.01x = 179,773,073.15
  5. Step 5: Solve for x
    x = 179,773,073.15/15,255.01
  6. Step 6: Final answer
    x = 11,784.53

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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.