Home / 19,665.40-29,498.82-6,518.92

Finding the Fourth Proportional to 19,665.40, 29,498.82 and 6,518.92

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Solution

The fourth proportional to 19,665.40, 29,498.82 and 6,518.92 is: 9,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.40 : 29,498.82 = 6,518.92 : x
  2. Step 2: Convert to fraction form
    19,665.40/29,498.82 = 6,518.92/x
  3. Step 3: Cross multiply
    19,665.40x = 29,498.82 × 6,518.92
  4. Step 4: Simplify right side
    19,665.40x = 192,300,447.67
  5. Step 5: Solve for x
    x = 192,300,447.67/19,665.40
  6. Step 6: Final answer
    x = 9,778.62

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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.