Home / 19,819.68-29,726.16-6,490.56

Finding the Fourth Proportional to 19,819.68, 29,726.16 and 6,490.56

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Solution

The fourth proportional to 19,819.68, 29,726.16 and 6,490.56 is: 9,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.68 : 29,726.16 = 6,490.56 : x
  2. Step 2: Convert to fraction form
    19,819.68/29,726.16 = 6,490.56/x
  3. Step 3: Cross multiply
    19,819.68x = 29,726.16 × 6,490.56
  4. Step 4: Simplify right side
    19,819.68x = 192,939,425.05
  5. Step 5: Solve for x
    x = 192,939,425.05/19,819.68
  6. Step 6: Final answer
    x = 9,734.74

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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.