Home / 13,799.67-20,683.29-6,388.47

Finding the Fourth Proportional to 13,799.67, 20,683.29 and 6,388.47

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Solution

The fourth proportional to 13,799.67, 20,683.29 and 6,388.47 is: 9,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.67 : 20,683.29 = 6,388.47 : x
  2. Step 2: Convert to fraction form
    13,799.67/20,683.29 = 6,388.47/x
  3. Step 3: Cross multiply
    13,799.67x = 20,683.29 × 6,388.47
  4. Step 4: Simplify right side
    13,799.67x = 132,134,577.67
  5. Step 5: Solve for x
    x = 132,134,577.67/13,799.67
  6. Step 6: Final answer
    x = 9,575.20

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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.