Home / 11,678.87-17,518.10-2,913.66

Finding the Fourth Proportional to 11,678.87, 17,518.10 and 2,913.66

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Solution

The fourth proportional to 11,678.87, 17,518.10 and 2,913.66 is: 4,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.87 : 17,518.10 = 2,913.66 : x
  2. Step 2: Convert to fraction form
    11,678.87/17,518.10 = 2,913.66/x
  3. Step 3: Cross multiply
    11,678.87x = 17,518.10 × 2,913.66
  4. Step 4: Simplify right side
    11,678.87x = 51,041,772.68
  5. Step 5: Solve for x
    x = 51,041,772.68/11,678.87
  6. Step 6: Final answer
    x = 4,370.44

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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.