Home / 13,653.97-18,841.15-7,685.52

Finding the Fourth Proportional to 13,653.97, 18,841.15 and 7,685.52

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Solution

The fourth proportional to 13,653.97, 18,841.15 and 7,685.52 is: 10,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.97 : 18,841.15 = 7,685.52 : x
  2. Step 2: Convert to fraction form
    13,653.97/18,841.15 = 7,685.52/x
  3. Step 3: Cross multiply
    13,653.97x = 18,841.15 × 7,685.52
  4. Step 4: Simplify right side
    13,653.97x = 144,804,035.15
  5. Step 5: Solve for x
    x = 144,804,035.15/13,653.97
  6. Step 6: Final answer
    x = 10,605.27

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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.