Home / 19,172.46-28,746.54-8,086.80

Finding the Fourth Proportional to 19,172.46, 28,746.54 and 8,086.80

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Solution

The fourth proportional to 19,172.46, 28,746.54 and 8,086.80 is: 12,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.46 : 28,746.54 = 8,086.80 : x
  2. Step 2: Convert to fraction form
    19,172.46/28,746.54 = 8,086.80/x
  3. Step 3: Cross multiply
    19,172.46x = 28,746.54 × 8,086.80
  4. Step 4: Simplify right side
    19,172.46x = 232,467,519.67
  5. Step 5: Solve for x
    x = 232,467,519.67/19,172.46
  6. Step 6: Final answer
    x = 12,125.08

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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.