Home / 15,102.59-20,842.51-8,388.27

Finding the Fourth Proportional to 15,102.59, 20,842.51 and 8,388.27

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Solution

The fourth proportional to 15,102.59, 20,842.51 and 8,388.27 is: 11,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.59 : 20,842.51 = 8,388.27 : x
  2. Step 2: Convert to fraction form
    15,102.59/20,842.51 = 8,388.27/x
  3. Step 3: Cross multiply
    15,102.59x = 20,842.51 × 8,388.27
  4. Step 4: Simplify right side
    15,102.59x = 174,832,580.39
  5. Step 5: Solve for x
    x = 174,832,580.39/15,102.59
  6. Step 6: Final answer
    x = 11,576.33

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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.