Home / 13,621.80-18,799.97-7,653.92

Finding the Fourth Proportional to 13,621.80, 18,799.97 and 7,653.92

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Solution

The fourth proportional to 13,621.80, 18,799.97 and 7,653.92 is: 10,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.80 : 18,799.97 = 7,653.92 : x
  2. Step 2: Convert to fraction form
    13,621.80/18,799.97 = 7,653.92/x
  3. Step 3: Cross multiply
    13,621.80x = 18,799.97 × 7,653.92
  4. Step 4: Simplify right side
    13,621.80x = 143,893,466.38
  5. Step 5: Solve for x
    x = 143,893,466.38/13,621.80
  6. Step 6: Final answer
    x = 10,563.47

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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.