Home / 14,158.07-21,234.26-13,455.53

Finding the Fourth Proportional to 14,158.07, 21,234.26 and 13,455.53

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Solution

The fourth proportional to 14,158.07, 21,234.26 and 13,455.53 is: 20,180.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.07 : 21,234.26 = 13,455.53 : x
  2. Step 2: Convert to fraction form
    14,158.07/21,234.26 = 13,455.53/x
  3. Step 3: Cross multiply
    14,158.07x = 21,234.26 × 13,455.53
  4. Step 4: Simplify right side
    14,158.07x = 285,718,049.01
  5. Step 5: Solve for x
    x = 285,718,049.01/14,158.07
  6. Step 6: Final answer
    x = 20,180.59

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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.