Home / 19,790.12-29,687.88-6,646.25

Finding the Fourth Proportional to 19,790.12, 29,687.88 and 6,646.25

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Solution

The fourth proportional to 19,790.12, 29,687.88 and 6,646.25 is: 9,970.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.12 : 29,687.88 = 6,646.25 : x
  2. Step 2: Convert to fraction form
    19,790.12/29,687.88 = 6,646.25/x
  3. Step 3: Cross multiply
    19,790.12x = 29,687.88 × 6,646.25
  4. Step 4: Simplify right side
    19,790.12x = 197,313,171.59
  5. Step 5: Solve for x
    x = 197,313,171.59/19,790.12
  6. Step 6: Final answer
    x = 9,970.29

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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.