Home / 9,118.05-13,677.08-2,878.69

Finding the Fourth Proportional to 9,118.05, 13,677.08 and 2,878.69

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Solution

The fourth proportional to 9,118.05, 13,677.08 and 2,878.69 is: 4,318.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.05 : 13,677.08 = 2,878.69 : x
  2. Step 2: Convert to fraction form
    9,118.05/13,677.08 = 2,878.69/x
  3. Step 3: Cross multiply
    9,118.05x = 13,677.08 × 2,878.69
  4. Step 4: Simplify right side
    9,118.05x = 39,372,059.03
  5. Step 5: Solve for x
    x = 39,372,059.03/9,118.05
  6. Step 6: Final answer
    x = 4,318.04

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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.