Home / 11,315.84-16,967.55-3,919.64

Finding the Fourth Proportional to 11,315.84, 16,967.55 and 3,919.64

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Solution

The fourth proportional to 11,315.84, 16,967.55 and 3,919.64 is: 5,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.84 : 16,967.55 = 3,919.64 : x
  2. Step 2: Convert to fraction form
    11,315.84/16,967.55 = 3,919.64/x
  3. Step 3: Cross multiply
    11,315.84x = 16,967.55 × 3,919.64
  4. Step 4: Simplify right side
    11,315.84x = 66,506,687.68
  5. Step 5: Solve for x
    x = 66,506,687.68/11,315.84
  6. Step 6: Final answer
    x = 5,877.31

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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.