Home / 12,180.91-18,272.05-3,416.51

Finding the Fourth Proportional to 12,180.91, 18,272.05 and 3,416.51

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Solution

The fourth proportional to 12,180.91, 18,272.05 and 3,416.51 is: 5,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,180.91 : 18,272.05 = 3,416.51 : x
  2. Step 2: Convert to fraction form
    12,180.91/18,272.05 = 3,416.51/x
  3. Step 3: Cross multiply
    12,180.91x = 18,272.05 × 3,416.51
  4. Step 4: Simplify right side
    12,180.91x = 62,426,533.10
  5. Step 5: Solve for x
    x = 62,426,533.10/12,180.91
  6. Step 6: Final answer
    x = 5,124.95

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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.