Home / 15,424.11-21,284.61-9,049.82

Finding the Fourth Proportional to 15,424.11, 21,284.61 and 9,049.82

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Solution

The fourth proportional to 15,424.11, 21,284.61 and 9,049.82 is: 12,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.11 : 21,284.61 = 9,049.82 : x
  2. Step 2: Convert to fraction form
    15,424.11/21,284.61 = 9,049.82/x
  3. Step 3: Cross multiply
    15,424.11x = 21,284.61 × 9,049.82
  4. Step 4: Simplify right side
    15,424.11x = 192,621,782.85
  5. Step 5: Solve for x
    x = 192,621,782.85/15,424.11
  6. Step 6: Final answer
    x = 12,488.36

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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.