Home / 18,676.84-25,762.98-13,112.68

Finding the Fourth Proportional to 18,676.84, 25,762.98 and 13,112.68

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Solution

The fourth proportional to 18,676.84, 25,762.98 and 13,112.68 is: 18,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.84 : 25,762.98 = 13,112.68 : x
  2. Step 2: Convert to fraction form
    18,676.84/25,762.98 = 13,112.68/x
  3. Step 3: Cross multiply
    18,676.84x = 25,762.98 × 13,112.68
  4. Step 4: Simplify right side
    18,676.84x = 337,821,712.59
  5. Step 5: Solve for x
    x = 337,821,712.59/18,676.84
  6. Step 6: Final answer
    x = 18,087.73

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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.