Home / 13,838.28-19,096.80-7,550.66

Finding the Fourth Proportional to 13,838.28, 19,096.80 and 7,550.66

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Solution

The fourth proportional to 13,838.28, 19,096.80 and 7,550.66 is: 10,419.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.28 : 19,096.80 = 7,550.66 : x
  2. Step 2: Convert to fraction form
    13,838.28/19,096.80 = 7,550.66/x
  3. Step 3: Cross multiply
    13,838.28x = 19,096.80 × 7,550.66
  4. Step 4: Simplify right side
    13,838.28x = 144,193,348.40
  5. Step 5: Solve for x
    x = 144,193,348.40/13,838.28
  6. Step 6: Final answer
    x = 10,419.89

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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.