Home / 14,418.56-21,622.08-7,749.92

Finding the Fourth Proportional to 14,418.56, 21,622.08 and 7,749.92

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Solution

The fourth proportional to 14,418.56, 21,622.08 and 7,749.92 is: 11,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,418.56 : 21,622.08 = 7,749.92 : x
  2. Step 2: Convert to fraction form
    14,418.56/21,622.08 = 7,749.92/x
  3. Step 3: Cross multiply
    14,418.56x = 21,622.08 × 7,749.92
  4. Step 4: Simplify right side
    14,418.56x = 167,569,390.23
  5. Step 5: Solve for x
    x = 167,569,390.23/14,418.56
  6. Step 6: Final answer
    x = 11,621.78

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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.