Home / 13,587.29-20,348.01-6,906.21

Finding the Fourth Proportional to 13,587.29, 20,348.01 and 6,906.21

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Solution

The fourth proportional to 13,587.29, 20,348.01 and 6,906.21 is: 10,342.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.29 : 20,348.01 = 6,906.21 : x
  2. Step 2: Convert to fraction form
    13,587.29/20,348.01 = 6,906.21/x
  3. Step 3: Cross multiply
    13,587.29x = 20,348.01 × 6,906.21
  4. Step 4: Simplify right side
    13,587.29x = 140,527,630.14
  5. Step 5: Solve for x
    x = 140,527,630.14/13,587.29
  6. Step 6: Final answer
    x = 10,342.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.