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Finding the Fourth Proportional to 19,802.40, 29,694.12 and 6,651.12

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Solution

The fourth proportional to 19,802.40, 29,694.12 and 6,651.12 is: 9,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,802.40 : 29,694.12 = 6,651.12 : x
  2. Step 2: Convert to fraction form
    19,802.40/29,694.12 = 6,651.12/x
  3. Step 3: Cross multiply
    19,802.40x = 29,694.12 × 6,651.12
  4. Step 4: Simplify right side
    19,802.40x = 197,499,155.41
  5. Step 5: Solve for x
    x = 197,499,155.41/19,802.40
  6. Step 6: Final answer
    x = 9,973.50

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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.