Home / 14,179.74-21,269.61-5,415.54

Finding the Fourth Proportional to 14,179.74, 21,269.61 and 5,415.54

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Solution

The fourth proportional to 14,179.74, 21,269.61 and 5,415.54 is: 8,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.74 : 21,269.61 = 5,415.54 : x
  2. Step 2: Convert to fraction form
    14,179.74/21,269.61 = 5,415.54/x
  3. Step 3: Cross multiply
    14,179.74x = 21,269.61 × 5,415.54
  4. Step 4: Simplify right side
    14,179.74x = 115,186,423.74
  5. Step 5: Solve for x
    x = 115,186,423.74/14,179.74
  6. Step 6: Final answer
    x = 8,123.31

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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.