Home / 13,634.73-18,809.28-9,657.90

Finding the Fourth Proportional to 13,634.73, 18,809.28 and 9,657.90

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Solution

The fourth proportional to 13,634.73, 18,809.28 and 9,657.90 is: 13,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.73 : 18,809.28 = 9,657.90 : x
  2. Step 2: Convert to fraction form
    13,634.73/18,809.28 = 9,657.90/x
  3. Step 3: Cross multiply
    13,634.73x = 18,809.28 × 9,657.90
  4. Step 4: Simplify right side
    13,634.73x = 181,658,145.31
  5. Step 5: Solve for x
    x = 181,658,145.31/13,634.73
  6. Step 6: Final answer
    x = 13,323.19

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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.