Home / 18,515.88-25,573.77-12,537.18

Finding the Fourth Proportional to 18,515.88, 25,573.77 and 12,537.18

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Solution

The fourth proportional to 18,515.88, 25,573.77 and 12,537.18 is: 17,316.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.88 : 25,573.77 = 12,537.18 : x
  2. Step 2: Convert to fraction form
    18,515.88/25,573.77 = 12,537.18/x
  3. Step 3: Cross multiply
    18,515.88x = 25,573.77 × 12,537.18
  4. Step 4: Simplify right side
    18,515.88x = 320,622,957.77
  5. Step 5: Solve for x
    x = 320,622,957.77/18,515.88
  6. Step 6: Final answer
    x = 17,316.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.