Home / 14,420.88-19,890.41-11,134.53

Finding the Fourth Proportional to 14,420.88, 19,890.41 and 11,134.53

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Solution

The fourth proportional to 14,420.88, 19,890.41 and 11,134.53 is: 15,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.88 : 19,890.41 = 11,134.53 : x
  2. Step 2: Convert to fraction form
    14,420.88/19,890.41 = 11,134.53/x
  3. Step 3: Cross multiply
    14,420.88x = 19,890.41 × 11,134.53
  4. Step 4: Simplify right side
    14,420.88x = 221,470,311.18
  5. Step 5: Solve for x
    x = 221,470,311.18/14,420.88
  6. Step 6: Final answer
    x = 15,357.61

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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.