Home / 14,705.74-20,293.88-7,991.37

Finding the Fourth Proportional to 14,705.74, 20,293.88 and 7,991.37

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Solution

The fourth proportional to 14,705.74, 20,293.88 and 7,991.37 is: 11,028.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.74 : 20,293.88 = 7,991.37 : x
  2. Step 2: Convert to fraction form
    14,705.74/20,293.88 = 7,991.37/x
  3. Step 3: Cross multiply
    14,705.74x = 20,293.88 × 7,991.37
  4. Step 4: Simplify right side
    14,705.74x = 162,175,762.39
  5. Step 5: Solve for x
    x = 162,175,762.39/14,705.74
  6. Step 6: Final answer
    x = 11,028.06

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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.