Home / 18,477.26-25,491.06-13,643.57

Finding the Fourth Proportional to 18,477.26, 25,491.06 and 13,643.57

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Solution

The fourth proportional to 18,477.26, 25,491.06 and 13,643.57 is: 18,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.26 : 25,491.06 = 13,643.57 : x
  2. Step 2: Convert to fraction form
    18,477.26/25,491.06 = 13,643.57/x
  3. Step 3: Cross multiply
    18,477.26x = 25,491.06 × 13,643.57
  4. Step 4: Simplify right side
    18,477.26x = 347,789,057.45
  5. Step 5: Solve for x
    x = 347,789,057.45/18,477.26
  6. Step 6: Final answer
    x = 18,822.55

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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.