Home / 15,525.27-21,427.74-9,151.38

Finding the Fourth Proportional to 15,525.27, 21,427.74 and 9,151.38

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Solution

The fourth proportional to 15,525.27, 21,427.74 and 9,151.38 is: 12,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.27 : 21,427.74 = 9,151.38 : x
  2. Step 2: Convert to fraction form
    15,525.27/21,427.74 = 9,151.38/x
  3. Step 3: Cross multiply
    15,525.27x = 21,427.74 × 9,151.38
  4. Step 4: Simplify right side
    15,525.27x = 196,093,391.28
  5. Step 5: Solve for x
    x = 196,093,391.28/15,525.27
  6. Step 6: Final answer
    x = 12,630.59

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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.