Home / 18,777.66-25,902.78-12,055.74

Finding the Fourth Proportional to 18,777.66, 25,902.78 and 12,055.74

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Solution

The fourth proportional to 18,777.66, 25,902.78 and 12,055.74 is: 16,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.66 : 25,902.78 = 12,055.74 : x
  2. Step 2: Convert to fraction form
    18,777.66/25,902.78 = 12,055.74/x
  3. Step 3: Cross multiply
    18,777.66x = 25,902.78 × 12,055.74
  4. Step 4: Simplify right side
    18,777.66x = 312,277,180.96
  5. Step 5: Solve for x
    x = 312,277,180.96/18,777.66
  6. Step 6: Final answer
    x = 16,630.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.