Home / 15,622.20-21,558.56-8,548.74

Finding the Fourth Proportional to 15,622.20, 21,558.56 and 8,548.74

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Solution

The fourth proportional to 15,622.20, 21,558.56 and 8,548.74 is: 11,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.20 : 21,558.56 = 8,548.74 : x
  2. Step 2: Convert to fraction form
    15,622.20/21,558.56 = 8,548.74/x
  3. Step 3: Cross multiply
    15,622.20x = 21,558.56 × 8,548.74
  4. Step 4: Simplify right side
    15,622.20x = 184,298,481.47
  5. Step 5: Solve for x
    x = 184,298,481.47/15,622.20
  6. Step 6: Final answer
    x = 11,797.22

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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.