Home / 10,875.30-16,308.39-3,477.78

Finding the Fourth Proportional to 10,875.30, 16,308.39 and 3,477.78

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Solution

The fourth proportional to 10,875.30, 16,308.39 and 3,477.78 is: 5,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.30 : 16,308.39 = 3,477.78 : x
  2. Step 2: Convert to fraction form
    10,875.30/16,308.39 = 3,477.78/x
  3. Step 3: Cross multiply
    10,875.30x = 16,308.39 × 3,477.78
  4. Step 4: Simplify right side
    10,875.30x = 56,716,992.57
  5. Step 5: Solve for x
    x = 56,716,992.57/10,875.30
  6. Step 6: Final answer
    x = 5,215.21

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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.