Home / 14,112.72-21,189.60-10,380.24

Finding the Fourth Proportional to 14,112.72, 21,189.60 and 10,380.24

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Solution

The fourth proportional to 14,112.72, 21,189.60 and 10,380.24 is: 15,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,112.72 : 21,189.60 = 10,380.24 : x
  2. Step 2: Convert to fraction form
    14,112.72/21,189.60 = 10,380.24/x
  3. Step 3: Cross multiply
    14,112.72x = 21,189.60 × 10,380.24
  4. Step 4: Simplify right side
    14,112.72x = 219,953,133.50
  5. Step 5: Solve for x
    x = 219,953,133.50/14,112.72
  6. Step 6: Final answer
    x = 15,585.45

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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.