Home / 14,131.72-21,158.70-10,658.44

Finding the Fourth Proportional to 14,131.72, 21,158.70 and 10,658.44

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Solution

The fourth proportional to 14,131.72, 21,158.70 and 10,658.44 is: 15,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.72 : 21,158.70 = 10,658.44 : x
  2. Step 2: Convert to fraction form
    14,131.72/21,158.70 = 10,658.44/x
  3. Step 3: Cross multiply
    14,131.72x = 21,158.70 × 10,658.44
  4. Step 4: Simplify right side
    14,131.72x = 225,518,734.43
  5. Step 5: Solve for x
    x = 225,518,734.43/14,131.72
  6. Step 6: Final answer
    x = 15,958.34

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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.