Home / 18,986.46-26,212.50-13,026.89

Finding the Fourth Proportional to 18,986.46, 26,212.50 and 13,026.89

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Solution

The fourth proportional to 18,986.46, 26,212.50 and 13,026.89 is: 17,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986.46 : 26,212.50 = 13,026.89 : x
  2. Step 2: Convert to fraction form
    18,986.46/26,212.50 = 13,026.89/x
  3. Step 3: Cross multiply
    18,986.46x = 26,212.50 × 13,026.89
  4. Step 4: Simplify right side
    18,986.46x = 341,467,223.06
  5. Step 5: Solve for x
    x = 341,467,223.06/18,986.46
  6. Step 6: Final answer
    x = 17,984.78

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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.