Home / 13,647.09-18,866.82-13,522.56

Finding the Fourth Proportional to 13,647.09, 18,866.82 and 13,522.56

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Solution

The fourth proportional to 13,647.09, 18,866.82 and 13,522.56 is: 18,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.09 : 18,866.82 = 13,522.56 : x
  2. Step 2: Convert to fraction form
    13,647.09/18,866.82 = 13,522.56/x
  3. Step 3: Cross multiply
    13,647.09x = 18,866.82 × 13,522.56
  4. Step 4: Simplify right side
    13,647.09x = 255,127,705.46
  5. Step 5: Solve for x
    x = 255,127,705.46/13,647.09
  6. Step 6: Final answer
    x = 18,694.66

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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.