Home / 13,764.21-18,994.68-7,476.57

Finding the Fourth Proportional to 13,764.21, 18,994.68 and 7,476.57

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Solution

The fourth proportional to 13,764.21, 18,994.68 and 7,476.57 is: 10,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.21 : 18,994.68 = 7,476.57 : x
  2. Step 2: Convert to fraction form
    13,764.21/18,994.68 = 7,476.57/x
  3. Step 3: Cross multiply
    13,764.21x = 18,994.68 × 7,476.57
  4. Step 4: Simplify right side
    13,764.21x = 142,015,054.65
  5. Step 5: Solve for x
    x = 142,015,054.65/13,764.21
  6. Step 6: Final answer
    x = 10,317.70

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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.