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Finding the Fourth Proportional to 9,091.80, 13,637.04 and 2,427.80

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Solution

The fourth proportional to 9,091.80, 13,637.04 and 2,427.80 is: 3,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.80 : 13,637.04 = 2,427.80 : x
  2. Step 2: Convert to fraction form
    9,091.80/13,637.04 = 2,427.80/x
  3. Step 3: Cross multiply
    9,091.80x = 13,637.04 × 2,427.80
  4. Step 4: Simplify right side
    9,091.80x = 33,108,005.71
  5. Step 5: Solve for x
    x = 33,108,005.71/9,091.80
  6. Step 6: Final answer
    x = 3,641.52

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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.