Home / 12,904.20-19,358.51-4,018.88

Finding the Fourth Proportional to 12,904.20, 19,358.51 and 4,018.88

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Solution

The fourth proportional to 12,904.20, 19,358.51 and 4,018.88 is: 6,029.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.20 : 19,358.51 = 4,018.88 : x
  2. Step 2: Convert to fraction form
    12,904.20/19,358.51 = 4,018.88/x
  3. Step 3: Cross multiply
    12,904.20x = 19,358.51 × 4,018.88
  4. Step 4: Simplify right side
    12,904.20x = 77,799,556.97
  5. Step 5: Solve for x
    x = 77,799,556.97/12,904.20
  6. Step 6: Final answer
    x = 6,029.01

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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.