Home / 14,440.80-19,939.56-11,078.28

Finding the Fourth Proportional to 14,440.80, 19,939.56 and 11,078.28

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Solution

The fourth proportional to 14,440.80, 19,939.56 and 11,078.28 is: 15,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,440.80 : 19,939.56 = 11,078.28 : x
  2. Step 2: Convert to fraction form
    14,440.80/19,939.56 = 11,078.28/x
  3. Step 3: Cross multiply
    14,440.80x = 19,939.56 × 11,078.28
  4. Step 4: Simplify right side
    14,440.80x = 220,896,028.76
  5. Step 5: Solve for x
    x = 220,896,028.76/14,440.80
  6. Step 6: Final answer
    x = 15,296.66

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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.