Home / 19,200.65-28,808.39-6,722.06

Finding the Fourth Proportional to 19,200.65, 28,808.39 and 6,722.06

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Solution

The fourth proportional to 19,200.65, 28,808.39 and 6,722.06 is: 10,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.65 : 28,808.39 = 6,722.06 : x
  2. Step 2: Convert to fraction form
    19,200.65/28,808.39 = 6,722.06/x
  3. Step 3: Cross multiply
    19,200.65x = 28,808.39 × 6,722.06
  4. Step 4: Simplify right side
    19,200.65x = 193,651,598.85
  5. Step 5: Solve for x
    x = 193,651,598.85/19,200.65
  6. Step 6: Final answer
    x = 10,085.68

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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.