Home / 18,342.74-25,328.50-11,640.26

Finding the Fourth Proportional to 18,342.74, 25,328.50 and 11,640.26

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Solution

The fourth proportional to 18,342.74, 25,328.50 and 11,640.26 is: 16,073.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.74 : 25,328.50 = 11,640.26 : x
  2. Step 2: Convert to fraction form
    18,342.74/25,328.50 = 11,640.26/x
  3. Step 3: Cross multiply
    18,342.74x = 25,328.50 × 11,640.26
  4. Step 4: Simplify right side
    18,342.74x = 294,830,359.63
  5. Step 5: Solve for x
    x = 294,830,359.63/18,342.74
  6. Step 6: Final answer
    x = 16,073.41

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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.