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Finding the Fourth Proportional to 8,810.68, 13,217.64 and 7,181.68

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Solution

The fourth proportional to 8,810.68, 13,217.64 and 7,181.68 is: 10,773.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.68 : 13,217.64 = 7,181.68 : x
  2. Step 2: Convert to fraction form
    8,810.68/13,217.64 = 7,181.68/x
  3. Step 3: Cross multiply
    8,810.68x = 13,217.64 × 7,181.68
  4. Step 4: Simplify right side
    8,810.68x = 94,924,860.84
  5. Step 5: Solve for x
    x = 94,924,860.84/8,810.68
  6. Step 6: Final answer
    x = 10,773.84

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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.