Home / 18,778.32-25,914.36-10,395.12

Finding the Fourth Proportional to 18,778.32, 25,914.36 and 10,395.12

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Solution

The fourth proportional to 18,778.32, 25,914.36 and 10,395.12 is: 14,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.32 : 25,914.36 = 10,395.12 : x
  2. Step 2: Convert to fraction form
    18,778.32/25,914.36 = 10,395.12/x
  3. Step 3: Cross multiply
    18,778.32x = 25,914.36 × 10,395.12
  4. Step 4: Simplify right side
    18,778.32x = 269,382,881.92
  5. Step 5: Solve for x
    x = 269,382,881.92/18,778.32
  6. Step 6: Final answer
    x = 14,345.42

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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.