Home / 15,525.22-21,427.60-9,151.44

Finding the Fourth Proportional to 15,525.22, 21,427.60 and 9,151.44

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Solution

The fourth proportional to 15,525.22, 21,427.60 and 9,151.44 is: 12,630.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.22 : 21,427.60 = 9,151.44 : x
  2. Step 2: Convert to fraction form
    15,525.22/21,427.60 = 9,151.44/x
  3. Step 3: Cross multiply
    15,525.22x = 21,427.60 × 9,151.44
  4. Step 4: Simplify right side
    15,525.22x = 196,093,473.20
  5. Step 5: Solve for x
    x = 196,093,473.20/15,525.22
  6. Step 6: Final answer
    x = 12,630.64

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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.