Home / 13,949.13-19,252.59-8,287.02

Finding the Fourth Proportional to 13,949.13, 19,252.59 and 8,287.02

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Solution

The fourth proportional to 13,949.13, 19,252.59 and 8,287.02 is: 11,437.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.13 : 19,252.59 = 8,287.02 : x
  2. Step 2: Convert to fraction form
    13,949.13/19,252.59 = 8,287.02/x
  3. Step 3: Cross multiply
    13,949.13x = 19,252.59 × 8,287.02
  4. Step 4: Simplify right side
    13,949.13x = 159,546,556.95
  5. Step 5: Solve for x
    x = 159,546,556.95/13,949.13
  6. Step 6: Final answer
    x = 11,437.74

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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.