Home / 15,538.28-21,442.77-8,823.60

Finding the Fourth Proportional to 15,538.28, 21,442.77 and 8,823.60

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Solution

The fourth proportional to 15,538.28, 21,442.77 and 8,823.60 is: 12,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.28 : 21,442.77 = 8,823.60 : x
  2. Step 2: Convert to fraction form
    15,538.28/21,442.77 = 8,823.60/x
  3. Step 3: Cross multiply
    15,538.28x = 21,442.77 × 8,823.60
  4. Step 4: Simplify right side
    15,538.28x = 189,202,425.37
  5. Step 5: Solve for x
    x = 189,202,425.37/15,538.28
  6. Step 6: Final answer
    x = 12,176.54

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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.