Home / 14,642.24-21,920.52-9,078.80

Finding the Fourth Proportional to 14,642.24, 21,920.52 and 9,078.80

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Solution

The fourth proportional to 14,642.24, 21,920.52 and 9,078.80 is: 13,591.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.24 : 21,920.52 = 9,078.80 : x
  2. Step 2: Convert to fraction form
    14,642.24/21,920.52 = 9,078.80/x
  3. Step 3: Cross multiply
    14,642.24x = 21,920.52 × 9,078.80
  4. Step 4: Simplify right side
    14,642.24x = 199,012,016.98
  5. Step 5: Solve for x
    x = 199,012,016.98/14,642.24
  6. Step 6: Final answer
    x = 13,591.64

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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.