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Finding the Fourth Proportional to 8,508.04, 11,720.16 and 7,245.04

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Solution

The fourth proportional to 8,508.04, 11,720.16 and 7,245.04 is: 9,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.04 : 11,720.16 = 7,245.04 : x
  2. Step 2: Convert to fraction form
    8,508.04/11,720.16 = 7,245.04/x
  3. Step 3: Cross multiply
    8,508.04x = 11,720.16 × 7,245.04
  4. Step 4: Simplify right side
    8,508.04x = 84,913,028.01
  5. Step 5: Solve for x
    x = 84,913,028.01/8,508.04
  6. Step 6: Final answer
    x = 9,980.33

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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.