Home / 15,305.76-21,122.28-10,004.04

Finding the Fourth Proportional to 15,305.76, 21,122.28 and 10,004.04

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Solution

The fourth proportional to 15,305.76, 21,122.28 and 10,004.04 is: 13,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.76 : 21,122.28 = 10,004.04 : x
  2. Step 2: Convert to fraction form
    15,305.76/21,122.28 = 10,004.04/x
  3. Step 3: Cross multiply
    15,305.76x = 21,122.28 × 10,004.04
  4. Step 4: Simplify right side
    15,305.76x = 211,308,134.01
  5. Step 5: Solve for x
    x = 211,308,134.01/15,305.76
  6. Step 6: Final answer
    x = 13,805.79

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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.