Home / 18,381.37-25,346.02-12,706.26

Finding the Fourth Proportional to 18,381.37, 25,346.02 and 12,706.26

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Solution

The fourth proportional to 18,381.37, 25,346.02 and 12,706.26 is: 17,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.37 : 25,346.02 = 12,706.26 : x
  2. Step 2: Convert to fraction form
    18,381.37/25,346.02 = 12,706.26/x
  3. Step 3: Cross multiply
    18,381.37x = 25,346.02 × 12,706.26
  4. Step 4: Simplify right side
    18,381.37x = 322,053,215.22
  5. Step 5: Solve for x
    x = 322,053,215.22/18,381.37
  6. Step 6: Final answer
    x = 17,520.63

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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.