Home / 13,104.04-18,083.56-7,135.75

Finding the Fourth Proportional to 13,104.04, 18,083.56 and 7,135.75

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Solution

The fourth proportional to 13,104.04, 18,083.56 and 7,135.75 is: 9,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,104.04 : 18,083.56 = 7,135.75 : x
  2. Step 2: Convert to fraction form
    13,104.04/18,083.56 = 7,135.75/x
  3. Step 3: Cross multiply
    13,104.04x = 18,083.56 × 7,135.75
  4. Step 4: Simplify right side
    13,104.04x = 129,039,637.17
  5. Step 5: Solve for x
    x = 129,039,637.17/13,104.04
  6. Step 6: Final answer
    x = 9,847.32

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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.