Home / 11,681.15-16,119.33-6,375.84

Finding the Fourth Proportional to 11,681.15, 16,119.33 and 6,375.84

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Solution

The fourth proportional to 11,681.15, 16,119.33 and 6,375.84 is: 8,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.15 : 16,119.33 = 6,375.84 : x
  2. Step 2: Convert to fraction form
    11,681.15/16,119.33 = 6,375.84/x
  3. Step 3: Cross multiply
    11,681.15x = 16,119.33 × 6,375.84
  4. Step 4: Simplify right side
    11,681.15x = 102,774,268.99
  5. Step 5: Solve for x
    x = 102,774,268.99/11,681.15
  6. Step 6: Final answer
    x = 8,798.30

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1.5x scale

Why These Related Problems?

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