Home / 19,813.40-29,724.65-6,665.43

Finding the Fourth Proportional to 19,813.40, 29,724.65 and 6,665.43

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Solution

The fourth proportional to 19,813.40, 29,724.65 and 6,665.43 is: 9,999.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,813.40 : 29,724.65 = 6,665.43 : x
  2. Step 2: Convert to fraction form
    19,813.40/29,724.65 = 6,665.43/x
  3. Step 3: Cross multiply
    19,813.40x = 29,724.65 × 6,665.43
  4. Step 4: Simplify right side
    19,813.40x = 198,127,573.85
  5. Step 5: Solve for x
    x = 198,127,573.85/19,813.40
  6. Step 6: Final answer
    x = 9,999.68

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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.