Home / 14,380.40-19,798.64-11,189.82

Finding the Fourth Proportional to 14,380.40, 19,798.64 and 11,189.82

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Solution

The fourth proportional to 14,380.40, 19,798.64 and 11,189.82 is: 15,405.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,380.40 : 19,798.64 = 11,189.82 : x
  2. Step 2: Convert to fraction form
    14,380.40/19,798.64 = 11,189.82/x
  3. Step 3: Cross multiply
    14,380.40x = 19,798.64 × 11,189.82
  4. Step 4: Simplify right side
    14,380.40x = 221,543,217.84
  5. Step 5: Solve for x
    x = 221,543,217.84/14,380.40
  6. Step 6: Final answer
    x = 15,405.91

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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.