Home / 13,994.37-20,971.81-7,757.17

Finding the Fourth Proportional to 13,994.37, 20,971.81 and 7,757.17

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Solution

The fourth proportional to 13,994.37, 20,971.81 and 7,757.17 is: 11,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,994.37 : 20,971.81 = 7,757.17 : x
  2. Step 2: Convert to fraction form
    13,994.37/20,971.81 = 7,757.17/x
  3. Step 3: Cross multiply
    13,994.37x = 20,971.81 × 7,757.17
  4. Step 4: Simplify right side
    13,994.37x = 162,681,852.64
  5. Step 5: Solve for x
    x = 162,681,852.64/13,994.37
  6. Step 6: Final answer
    x = 11,624.81

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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.