Home / 18,674.56-25,781.44-12,395.52

Finding the Fourth Proportional to 18,674.56, 25,781.44 and 12,395.52

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Solution

The fourth proportional to 18,674.56, 25,781.44 and 12,395.52 is: 17,112.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.56 : 25,781.44 = 12,395.52 : x
  2. Step 2: Convert to fraction form
    18,674.56/25,781.44 = 12,395.52/x
  3. Step 3: Cross multiply
    18,674.56x = 25,781.44 × 12,395.52
  4. Step 4: Simplify right side
    18,674.56x = 319,574,355.15
  5. Step 5: Solve for x
    x = 319,574,355.15/18,674.56
  6. Step 6: Final answer
    x = 17,112.82

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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.