Home / 14,943.18-20,621.59-8,228.79

Finding the Fourth Proportional to 14,943.18, 20,621.59 and 8,228.79

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Solution

The fourth proportional to 14,943.18, 20,621.59 and 8,228.79 is: 11,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.18 : 20,621.59 = 8,228.79 : x
  2. Step 2: Convert to fraction form
    14,943.18/20,621.59 = 8,228.79/x
  3. Step 3: Cross multiply
    14,943.18x = 20,621.59 × 8,228.79
  4. Step 4: Simplify right side
    14,943.18x = 169,690,640.88
  5. Step 5: Solve for x
    x = 169,690,640.88/14,943.18
  6. Step 6: Final answer
    x = 11,355.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.