Home / 12,461.12-18,689.76-3,696.80

Finding the Fourth Proportional to 12,461.12, 18,689.76 and 3,696.80

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Solution

The fourth proportional to 12,461.12, 18,689.76 and 3,696.80 is: 5,544.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.12 : 18,689.76 = 3,696.80 : x
  2. Step 2: Convert to fraction form
    12,461.12/18,689.76 = 3,696.80/x
  3. Step 3: Cross multiply
    12,461.12x = 18,689.76 × 3,696.80
  4. Step 4: Simplify right side
    12,461.12x = 69,092,304.77
  5. Step 5: Solve for x
    x = 69,092,304.77/12,461.12
  6. Step 6: Final answer
    x = 5,544.63

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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.