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Finding the Fourth Proportional to 8,535.48, 11,782.20 and 4,998.72

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Solution

The fourth proportional to 8,535.48, 11,782.20 and 4,998.72 is: 6,900.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,535.48 : 11,782.20 = 4,998.72 : x
  2. Step 2: Convert to fraction form
    8,535.48/11,782.20 = 4,998.72/x
  3. Step 3: Cross multiply
    8,535.48x = 11,782.20 × 4,998.72
  4. Step 4: Simplify right side
    8,535.48x = 58,895,918.78
  5. Step 5: Solve for x
    x = 58,895,918.78/8,535.48
  6. Step 6: Final answer
    x = 6,900.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.