Home / 11,299.89-16,931.99-9,181.18

Finding the Fourth Proportional to 11,299.89, 16,931.99 and 9,181.18

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Solution

The fourth proportional to 11,299.89, 16,931.99 and 9,181.18 is: 13,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.89 : 16,931.99 = 9,181.18 : x
  2. Step 2: Convert to fraction form
    11,299.89/16,931.99 = 9,181.18/x
  3. Step 3: Cross multiply
    11,299.89x = 16,931.99 × 9,181.18
  4. Step 4: Simplify right side
    11,299.89x = 155,455,647.95
  5. Step 5: Solve for x
    x = 155,455,647.95/11,299.89
  6. Step 6: Final answer
    x = 13,757.27

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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.