Home / 14,221.22-21,331.74-7,650.50

Finding the Fourth Proportional to 14,221.22, 21,331.74 and 7,650.50

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Solution

The fourth proportional to 14,221.22, 21,331.74 and 7,650.50 is: 11,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.22 : 21,331.74 = 7,650.50 : x
  2. Step 2: Convert to fraction form
    14,221.22/21,331.74 = 7,650.50/x
  3. Step 3: Cross multiply
    14,221.22x = 21,331.74 × 7,650.50
  4. Step 4: Simplify right side
    14,221.22x = 163,198,476.87
  5. Step 5: Solve for x
    x = 163,198,476.87/14,221.22
  6. Step 6: Final answer
    x = 11,475.70

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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.