Home / 10,785.84-16,176.60-3,389.28

Finding the Fourth Proportional to 10,785.84, 16,176.60 and 3,389.28

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Solution

The fourth proportional to 10,785.84, 16,176.60 and 3,389.28 is: 5,083.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,785.84 : 16,176.60 = 3,389.28 : x
  2. Step 2: Convert to fraction form
    10,785.84/16,176.60 = 3,389.28/x
  3. Step 3: Cross multiply
    10,785.84x = 16,176.60 × 3,389.28
  4. Step 4: Simplify right side
    10,785.84x = 54,827,026.85
  5. Step 5: Solve for x
    x = 54,827,026.85/10,785.84
  6. Step 6: Final answer
    x = 5,083.24

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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.