Home / 15,890.97-21,934.58-11,189.01

Finding the Fourth Proportional to 15,890.97, 21,934.58 and 11,189.01

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Solution

The fourth proportional to 15,890.97, 21,934.58 and 11,189.01 is: 15,444.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.97 : 21,934.58 = 11,189.01 : x
  2. Step 2: Convert to fraction form
    15,890.97/21,934.58 = 11,189.01/x
  3. Step 3: Cross multiply
    15,890.97x = 21,934.58 × 11,189.01
  4. Step 4: Simplify right side
    15,890.97x = 245,426,179.02
  5. Step 5: Solve for x
    x = 245,426,179.02/15,890.97
  6. Step 6: Final answer
    x = 15,444.38

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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.