Home / 19,805.19-29,712.24-6,657.20

Finding the Fourth Proportional to 19,805.19, 29,712.24 and 6,657.20

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Solution

The fourth proportional to 19,805.19, 29,712.24 and 6,657.20 is: 9,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.19 : 29,712.24 = 6,657.20 : x
  2. Step 2: Convert to fraction form
    19,805.19/29,712.24 = 6,657.20/x
  3. Step 3: Cross multiply
    19,805.19x = 29,712.24 × 6,657.20
  4. Step 4: Simplify right side
    19,805.19x = 197,800,398.41
  5. Step 5: Solve for x
    x = 197,800,398.41/19,805.19
  6. Step 6: Final answer
    x = 9,987.30

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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.