Home / 15,635.20-21,576.60-8,561.46

Finding the Fourth Proportional to 15,635.20, 21,576.60 and 8,561.46

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Solution

The fourth proportional to 15,635.20, 21,576.60 and 8,561.46 is: 11,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.20 : 21,576.60 = 8,561.46 : x
  2. Step 2: Convert to fraction form
    15,635.20/21,576.60 = 8,561.46/x
  3. Step 3: Cross multiply
    15,635.20x = 21,576.60 × 8,561.46
  4. Step 4: Simplify right side
    15,635.20x = 184,727,197.84
  5. Step 5: Solve for x
    x = 184,727,197.84/15,635.20
  6. Step 6: Final answer
    x = 11,814.83

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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.