Home / 18,789.19-28,185.65-6,946.07

Finding the Fourth Proportional to 18,789.19, 28,185.65 and 6,946.07

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Solution

The fourth proportional to 18,789.19, 28,185.65 and 6,946.07 is: 10,419.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.19 : 28,185.65 = 6,946.07 : x
  2. Step 2: Convert to fraction form
    18,789.19/28,185.65 = 6,946.07/x
  3. Step 3: Cross multiply
    18,789.19x = 28,185.65 × 6,946.07
  4. Step 4: Simplify right side
    18,789.19x = 195,779,497.90
  5. Step 5: Solve for x
    x = 195,779,497.90/18,789.19
  6. Step 6: Final answer
    x = 10,419.79

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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.