Home / 9,021.97-13,532.09-2,780.31

Finding the Fourth Proportional to 9,021.97, 13,532.09 and 2,780.31

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Solution

The fourth proportional to 9,021.97, 13,532.09 and 2,780.31 is: 4,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.97 : 13,532.09 = 2,780.31 : x
  2. Step 2: Convert to fraction form
    9,021.97/13,532.09 = 2,780.31/x
  3. Step 3: Cross multiply
    9,021.97x = 13,532.09 × 2,780.31
  4. Step 4: Simplify right side
    9,021.97x = 37,623,368.48
  5. Step 5: Solve for x
    x = 37,623,368.48/9,021.97
  6. Step 6: Final answer
    x = 4,170.19

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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.