Home / 13,987.74-20,969.73-6,192.30

Finding the Fourth Proportional to 13,987.74, 20,969.73 and 6,192.30

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Solution

The fourth proportional to 13,987.74, 20,969.73 and 6,192.30 is: 9,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.74 : 20,969.73 = 6,192.30 : x
  2. Step 2: Convert to fraction form
    13,987.74/20,969.73 = 6,192.30/x
  3. Step 3: Cross multiply
    13,987.74x = 20,969.73 × 6,192.30
  4. Step 4: Simplify right side
    13,987.74x = 129,850,859.08
  5. Step 5: Solve for x
    x = 129,850,859.08/13,987.74
  6. Step 6: Final answer
    x = 9,283.19

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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.