Home / 18,289.69-27,434.49-7,190.28

Finding the Fourth Proportional to 18,289.69, 27,434.49 and 7,190.28

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Solution

The fourth proportional to 18,289.69, 27,434.49 and 7,190.28 is: 10,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,289.69 : 27,434.49 = 7,190.28 : x
  2. Step 2: Convert to fraction form
    18,289.69/27,434.49 = 7,190.28/x
  3. Step 3: Cross multiply
    18,289.69x = 27,434.49 × 7,190.28
  4. Step 4: Simplify right side
    18,289.69x = 197,261,637.79
  5. Step 5: Solve for x
    x = 197,261,637.79/18,289.69
  6. Step 6: Final answer
    x = 10,785.40

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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.