Home / 11,678.57-17,517.85-2,913.46

Finding the Fourth Proportional to 11,678.57, 17,517.85 and 2,913.46

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Solution

The fourth proportional to 11,678.57, 17,517.85 and 2,913.46 is: 4,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.57 : 17,517.85 = 2,913.46 : x
  2. Step 2: Convert to fraction form
    11,678.57/17,517.85 = 2,913.46/x
  3. Step 3: Cross multiply
    11,678.57x = 17,517.85 × 2,913.46
  4. Step 4: Simplify right side
    11,678.57x = 51,037,555.26
  5. Step 5: Solve for x
    x = 51,037,555.26/11,678.57
  6. Step 6: Final answer
    x = 4,370.19

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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.