Home / 18,394.80-27,570.60-8,513.21

Finding the Fourth Proportional to 18,394.80, 27,570.60 and 8,513.21

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Solution

The fourth proportional to 18,394.80, 27,570.60 and 8,513.21 is: 12,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,394.80 : 27,570.60 = 8,513.21 : x
  2. Step 2: Convert to fraction form
    18,394.80/27,570.60 = 8,513.21/x
  3. Step 3: Cross multiply
    18,394.80x = 27,570.60 × 8,513.21
  4. Step 4: Simplify right side
    18,394.80x = 234,714,307.63
  5. Step 5: Solve for x
    x = 234,714,307.63/18,394.80
  6. Step 6: Final answer
    x = 12,759.82

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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.