Home / 14,145.13-21,223.84-5,382.55

Finding the Fourth Proportional to 14,145.13, 21,223.84 and 5,382.55

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Solution

The fourth proportional to 14,145.13, 21,223.84 and 5,382.55 is: 8,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.13 : 21,223.84 = 5,382.55 : x
  2. Step 2: Convert to fraction form
    14,145.13/21,223.84 = 5,382.55/x
  3. Step 3: Cross multiply
    14,145.13x = 21,223.84 × 5,382.55
  4. Step 4: Simplify right side
    14,145.13x = 114,238,379.99
  5. Step 5: Solve for x
    x = 114,238,379.99/14,145.13
  6. Step 6: Final answer
    x = 8,076.16

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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.