Home / 19,222.46-28,837.59-8,129.13

Finding the Fourth Proportional to 19,222.46, 28,837.59 and 8,129.13

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Solution

The fourth proportional to 19,222.46, 28,837.59 and 8,129.13 is: 12,195.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.46 : 28,837.59 = 8,129.13 : x
  2. Step 2: Convert to fraction form
    19,222.46/28,837.59 = 8,129.13/x
  3. Step 3: Cross multiply
    19,222.46x = 28,837.59 × 8,129.13
  4. Step 4: Simplify right side
    19,222.46x = 234,424,518.00
  5. Step 5: Solve for x
    x = 234,424,518.00/19,222.46
  6. Step 6: Final answer
    x = 12,195.34

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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.