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Finding the Fourth Proportional to 9,480.30, 13,080.87 and 7,238.22

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Solution

The fourth proportional to 9,480.30, 13,080.87 and 7,238.22 is: 9,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,480.30 : 13,080.87 = 7,238.22 : x
  2. Step 2: Convert to fraction form
    9,480.30/13,080.87 = 7,238.22/x
  3. Step 3: Cross multiply
    9,480.30x = 13,080.87 × 7,238.22
  4. Step 4: Simplify right side
    9,480.30x = 94,682,214.85
  5. Step 5: Solve for x
    x = 94,682,214.85/9,480.30
  6. Step 6: Final answer
    x = 9,987.26

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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.