Home / 19,799.64-29,694.60-8,116.20

Finding the Fourth Proportional to 19,799.64, 29,694.60 and 8,116.20

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Solution

The fourth proportional to 19,799.64, 29,694.60 and 8,116.20 is: 12,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,799.64 : 29,694.60 = 8,116.20 : x
  2. Step 2: Convert to fraction form
    19,799.64/29,694.60 = 8,116.20/x
  3. Step 3: Cross multiply
    19,799.64x = 29,694.60 × 8,116.20
  4. Step 4: Simplify right side
    19,799.64x = 241,007,312.52
  5. Step 5: Solve for x
    x = 241,007,312.52/19,799.64
  6. Step 6: Final answer
    x = 12,172.31

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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.