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Finding the Fourth Proportional to 10,781.40, 14,894.46 and 8,536.08

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Solution

The fourth proportional to 10,781.40, 14,894.46 and 8,536.08 is: 11,792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.40 : 14,894.46 = 8,536.08 : x
  2. Step 2: Convert to fraction form
    10,781.40/14,894.46 = 8,536.08/x
  3. Step 3: Cross multiply
    10,781.40x = 14,894.46 × 8,536.08
  4. Step 4: Simplify right side
    10,781.40x = 127,140,302.12
  5. Step 5: Solve for x
    x = 127,140,302.12/10,781.40
  6. Step 6: Final answer
    x = 11,792.56

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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.