Home / 15,794.76-21,789.90-10,119.36

Finding the Fourth Proportional to 15,794.76, 21,789.90 and 10,119.36

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Solution

The fourth proportional to 15,794.76, 21,789.90 and 10,119.36 is: 13,960.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,794.76 : 21,789.90 = 10,119.36 : x
  2. Step 2: Convert to fraction form
    15,794.76/21,789.90 = 10,119.36/x
  3. Step 3: Cross multiply
    15,794.76x = 21,789.90 × 10,119.36
  4. Step 4: Simplify right side
    15,794.76x = 220,499,842.46
  5. Step 5: Solve for x
    x = 220,499,842.46/15,794.76
  6. Step 6: Final answer
    x = 13,960.32

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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.