Home / 9,119.21-13,676.99-2,878.16

Finding the Fourth Proportional to 9,119.21, 13,676.99 and 2,878.16

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Solution

The fourth proportional to 9,119.21, 13,676.99 and 2,878.16 is: 4,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.21 : 13,676.99 = 2,878.16 : x
  2. Step 2: Convert to fraction form
    9,119.21/13,676.99 = 2,878.16/x
  3. Step 3: Cross multiply
    9,119.21x = 13,676.99 × 2,878.16
  4. Step 4: Simplify right side
    9,119.21x = 39,364,565.54
  5. Step 5: Solve for x
    x = 39,364,565.54/9,119.21
  6. Step 6: Final answer
    x = 4,316.66

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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.