Home / 14,137.28-21,205.92-4,777.34

Finding the Fourth Proportional to 14,137.28, 21,205.92 and 4,777.34

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Solution

The fourth proportional to 14,137.28, 21,205.92 and 4,777.34 is: 7,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.28 : 21,205.92 = 4,777.34 : x
  2. Step 2: Convert to fraction form
    14,137.28/21,205.92 = 4,777.34/x
  3. Step 3: Cross multiply
    14,137.28x = 21,205.92 × 4,777.34
  4. Step 4: Simplify right side
    14,137.28x = 101,307,889.85
  5. Step 5: Solve for x
    x = 101,307,889.85/14,137.28
  6. Step 6: Final answer
    x = 7,166.01

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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.