Home / 18,529.20-27,758.91-9,158.25

Finding the Fourth Proportional to 18,529.20, 27,758.91 and 9,158.25

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Solution

The fourth proportional to 18,529.20, 27,758.91 and 9,158.25 is: 13,720.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.20 : 27,758.91 = 9,158.25 : x
  2. Step 2: Convert to fraction form
    18,529.20/27,758.91 = 9,158.25/x
  3. Step 3: Cross multiply
    18,529.20x = 27,758.91 × 9,158.25
  4. Step 4: Simplify right side
    18,529.20x = 254,223,037.51
  5. Step 5: Solve for x
    x = 254,223,037.51/18,529.20
  6. Step 6: Final answer
    x = 13,720.13

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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.