Home / 12,124.50-18,186.77-3,359.44

Finding the Fourth Proportional to 12,124.50, 18,186.77 and 3,359.44

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Solution

The fourth proportional to 12,124.50, 18,186.77 and 3,359.44 is: 5,039.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.50 : 18,186.77 = 3,359.44 : x
  2. Step 2: Convert to fraction form
    12,124.50/18,186.77 = 3,359.44/x
  3. Step 3: Cross multiply
    12,124.50x = 18,186.77 × 3,359.44
  4. Step 4: Simplify right side
    12,124.50x = 61,097,271.67
  5. Step 5: Solve for x
    x = 61,097,271.67/12,124.50
  6. Step 6: Final answer
    x = 5,039.16

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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.