Home / 13,621.38-18,797.58-7,653.30

Finding the Fourth Proportional to 13,621.38, 18,797.58 and 7,653.30

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Solution

The fourth proportional to 13,621.38, 18,797.58 and 7,653.30 is: 10,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.38 : 18,797.58 = 7,653.30 : x
  2. Step 2: Convert to fraction form
    13,621.38/18,797.58 = 7,653.30/x
  3. Step 3: Cross multiply
    13,621.38x = 18,797.58 × 7,653.30
  4. Step 4: Simplify right side
    13,621.38x = 143,863,519.01
  5. Step 5: Solve for x
    x = 143,863,519.01/13,621.38
  6. Step 6: Final answer
    x = 10,561.60

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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.