Home / 15,622.29-21,558.33-8,548.56

Finding the Fourth Proportional to 15,622.29, 21,558.33 and 8,548.56

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Solution

The fourth proportional to 15,622.29, 21,558.33 and 8,548.56 is: 11,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,622.29 : 21,558.33 = 8,548.56 : x
  2. Step 2: Convert to fraction form
    15,622.29/21,558.33 = 8,548.56/x
  3. Step 3: Cross multiply
    15,622.29x = 21,558.33 × 8,548.56
  4. Step 4: Simplify right side
    15,622.29x = 184,292,677.50
  5. Step 5: Solve for x
    x = 184,292,677.50/15,622.29
  6. Step 6: Final answer
    x = 11,796.78

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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.