Home / 14,515.43-19,986.59-12,712.51

Finding the Fourth Proportional to 14,515.43, 19,986.59 and 12,712.51

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Solution

The fourth proportional to 14,515.43, 19,986.59 and 12,712.51 is: 17,504.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.43 : 19,986.59 = 12,712.51 : x
  2. Step 2: Convert to fraction form
    14,515.43/19,986.59 = 12,712.51/x
  3. Step 3: Cross multiply
    14,515.43x = 19,986.59 × 12,712.51
  4. Step 4: Simplify right side
    14,515.43x = 254,079,661.68
  5. Step 5: Solve for x
    x = 254,079,661.68/14,515.43
  6. Step 6: Final answer
    x = 17,504.11

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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.