Home / 9,081.20-13,634.60-7,135.60

Finding the Fourth Proportional to 9,081.20, 13,634.60 and 7,135.60

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Solution

The fourth proportional to 9,081.20, 13,634.60 and 7,135.60 is: 10,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,081.20 : 13,634.60 = 7,135.60 : x
  2. Step 2: Convert to fraction form
    9,081.20/13,634.60 = 7,135.60/x
  3. Step 3: Cross multiply
    9,081.20x = 13,634.60 × 7,135.60
  4. Step 4: Simplify right side
    9,081.20x = 97,291,051.76
  5. Step 5: Solve for x
    x = 97,291,051.76/9,081.20
  6. Step 6: Final answer
    x = 10,713.46

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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.