Home / 11,247.40-16,870.38-3,457

Finding the Fourth Proportional to 11,247.40, 16,870.38 and 3,457

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Solution

The fourth proportional to 11,247.40, 16,870.38 and 3,457 is: 5,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.40 : 16,870.38 = 3,457 : x
  2. Step 2: Convert to fraction form
    11,247.40/16,870.38 = 3,457/x
  3. Step 3: Cross multiply
    11,247.40x = 16,870.38 × 3,457
  4. Step 4: Simplify right side
    11,247.40x = 58,320,903.66
  5. Step 5: Solve for x
    x = 58,320,903.66/11,247.40
  6. Step 6: Final answer
    x = 5,185.28

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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.