Home / 12,585.77-18,878.35-3,225.61

Finding the Fourth Proportional to 12,585.77, 18,878.35 and 3,225.61

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Solution

The fourth proportional to 12,585.77, 18,878.35 and 3,225.61 is: 4,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.77 : 18,878.35 = 3,225.61 : x
  2. Step 2: Convert to fraction form
    12,585.77/18,878.35 = 3,225.61/x
  3. Step 3: Cross multiply
    12,585.77x = 18,878.35 × 3,225.61
  4. Step 4: Simplify right side
    12,585.77x = 60,894,194.54
  5. Step 5: Solve for x
    x = 60,894,194.54/12,585.77
  6. Step 6: Final answer
    x = 4,838.34

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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.