Home / 11,122.38-16,682.32-2,802.40

Finding the Fourth Proportional to 11,122.38, 16,682.32 and 2,802.40

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Solution

The fourth proportional to 11,122.38, 16,682.32 and 2,802.40 is: 4,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.38 : 16,682.32 = 2,802.40 : x
  2. Step 2: Convert to fraction form
    11,122.38/16,682.32 = 2,802.40/x
  3. Step 3: Cross multiply
    11,122.38x = 16,682.32 × 2,802.40
  4. Step 4: Simplify right side
    11,122.38x = 46,750,533.57
  5. Step 5: Solve for x
    x = 46,750,533.57/11,122.38
  6. Step 6: Final answer
    x = 4,203.29

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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.