Home / 15,634.60-21,576.10-8,561.32

Finding the Fourth Proportional to 15,634.60, 21,576.10 and 8,561.32

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Solution

The fourth proportional to 15,634.60, 21,576.10 and 8,561.32 is: 11,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.60 : 21,576.10 = 8,561.32 : x
  2. Step 2: Convert to fraction form
    15,634.60/21,576.10 = 8,561.32/x
  3. Step 3: Cross multiply
    15,634.60x = 21,576.10 × 8,561.32
  4. Step 4: Simplify right side
    15,634.60x = 184,719,896.45
  5. Step 5: Solve for x
    x = 184,719,896.45/15,634.60
  6. Step 6: Final answer
    x = 11,814.81

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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.