Home / 12,176.15-18,255.32-3,851.51

Finding the Fourth Proportional to 12,176.15, 18,255.32 and 3,851.51

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Solution

The fourth proportional to 12,176.15, 18,255.32 and 3,851.51 is: 5,774.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.15 : 18,255.32 = 3,851.51 : x
  2. Step 2: Convert to fraction form
    12,176.15/18,255.32 = 3,851.51/x
  3. Step 3: Cross multiply
    12,176.15x = 18,255.32 × 3,851.51
  4. Step 4: Simplify right side
    12,176.15x = 70,310,528.28
  5. Step 5: Solve for x
    x = 70,310,528.28/12,176.15
  6. Step 6: Final answer
    x = 5,774.45

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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.