Home / 12,339.82-18,549.87-9,901.36

Finding the Fourth Proportional to 12,339.82, 18,549.87 and 9,901.36

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Solution

The fourth proportional to 12,339.82, 18,549.87 and 9,901.36 is: 14,884.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339.82 : 18,549.87 = 9,901.36 : x
  2. Step 2: Convert to fraction form
    12,339.82/18,549.87 = 9,901.36/x
  3. Step 3: Cross multiply
    12,339.82x = 18,549.87 × 9,901.36
  4. Step 4: Simplify right side
    12,339.82x = 183,668,940.82
  5. Step 5: Solve for x
    x = 183,668,940.82/12,339.82
  6. Step 6: Final answer
    x = 14,884.25

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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.