Home / 17,165.36-23,672.04-13,640.24

Finding the Fourth Proportional to 17,165.36, 23,672.04 and 13,640.24

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Solution

The fourth proportional to 17,165.36, 23,672.04 and 13,640.24 is: 18,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,165.36 : 23,672.04 = 13,640.24 : x
  2. Step 2: Convert to fraction form
    17,165.36/23,672.04 = 13,640.24/x
  3. Step 3: Cross multiply
    17,165.36x = 23,672.04 × 13,640.24
  4. Step 4: Simplify right side
    17,165.36x = 322,892,306.89
  5. Step 5: Solve for x
    x = 322,892,306.89/17,165.36
  6. Step 6: Final answer
    x = 18,810.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.