Home / 12,088.47-18,129.62-3,766.93

Finding the Fourth Proportional to 12,088.47, 18,129.62 and 3,766.93

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Solution

The fourth proportional to 12,088.47, 18,129.62 and 3,766.93 is: 5,649.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,088.47 : 18,129.62 = 3,766.93 : x
  2. Step 2: Convert to fraction form
    12,088.47/18,129.62 = 3,766.93/x
  3. Step 3: Cross multiply
    12,088.47x = 18,129.62 × 3,766.93
  4. Step 4: Simplify right side
    12,088.47x = 68,293,009.47
  5. Step 5: Solve for x
    x = 68,293,009.47/12,088.47
  6. Step 6: Final answer
    x = 5,649.43

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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.