Home / 14,179.52-21,277.92-6,389.12

Finding the Fourth Proportional to 14,179.52, 21,277.92 and 6,389.12

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Solution

The fourth proportional to 14,179.52, 21,277.92 and 6,389.12 is: 9,587.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.52 : 21,277.92 = 6,389.12 : x
  2. Step 2: Convert to fraction form
    14,179.52/21,277.92 = 6,389.12/x
  3. Step 3: Cross multiply
    14,179.52x = 21,277.92 × 6,389.12
  4. Step 4: Simplify right side
    14,179.52x = 135,947,184.23
  5. Step 5: Solve for x
    x = 135,947,184.23/14,179.52
  6. Step 6: Final answer
    x = 9,587.57

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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.