Home / 14,318.52-21,478.16-3,930.24

Finding the Fourth Proportional to 14,318.52, 21,478.16 and 3,930.24

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Solution

The fourth proportional to 14,318.52, 21,478.16 and 3,930.24 is: 5,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.52 : 21,478.16 = 3,930.24 : x
  2. Step 2: Convert to fraction form
    14,318.52/21,478.16 = 3,930.24/x
  3. Step 3: Cross multiply
    14,318.52x = 21,478.16 × 3,930.24
  4. Step 4: Simplify right side
    14,318.52x = 84,414,323.56
  5. Step 5: Solve for x
    x = 84,414,323.56/14,318.52
  6. Step 6: Final answer
    x = 5,895.46

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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.