Home / 13,388.29-20,084.25-5,071.21

Finding the Fourth Proportional to 13,388.29, 20,084.25 and 5,071.21

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Solution

The fourth proportional to 13,388.29, 20,084.25 and 5,071.21 is: 7,607.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388.29 : 20,084.25 = 5,071.21 : x
  2. Step 2: Convert to fraction form
    13,388.29/20,084.25 = 5,071.21/x
  3. Step 3: Cross multiply
    13,388.29x = 20,084.25 × 5,071.21
  4. Step 4: Simplify right side
    13,388.29x = 101,851,418.25
  5. Step 5: Solve for x
    x = 101,851,418.25/13,388.29
  6. Step 6: Final answer
    x = 7,607.50

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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.