Home / 14,131.96-21,178.14-10,619.72

Finding the Fourth Proportional to 14,131.96, 21,178.14 and 10,619.72

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Solution

The fourth proportional to 14,131.96, 21,178.14 and 10,619.72 is: 15,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.96 : 21,178.14 = 10,619.72 : x
  2. Step 2: Convert to fraction form
    14,131.96/21,178.14 = 10,619.72/x
  3. Step 3: Cross multiply
    14,131.96x = 21,178.14 × 10,619.72
  4. Step 4: Simplify right side
    14,131.96x = 224,905,850.62
  5. Step 5: Solve for x
    x = 224,905,850.62/14,131.96
  6. Step 6: Final answer
    x = 15,914.70

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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.