Home / 8,722.28-13,070.43-3,789.23

Finding the Fourth Proportional to 8,722.28, 13,070.43 and 3,789.23

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Solution

The fourth proportional to 8,722.28, 13,070.43 and 3,789.23 is: 5,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.28 : 13,070.43 = 3,789.23 : x
  2. Step 2: Convert to fraction form
    8,722.28/13,070.43 = 3,789.23/x
  3. Step 3: Cross multiply
    8,722.28x = 13,070.43 × 3,789.23
  4. Step 4: Simplify right side
    8,722.28x = 49,526,842.27
  5. Step 5: Solve for x
    x = 49,526,842.27/8,722.28
  6. Step 6: Final answer
    x = 5,678.20

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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.