Home / 13,698.36-18,903.78-7,410.75

Finding the Fourth Proportional to 13,698.36, 18,903.78 and 7,410.75

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Solution

The fourth proportional to 13,698.36, 18,903.78 and 7,410.75 is: 10,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.36 : 18,903.78 = 7,410.75 : x
  2. Step 2: Convert to fraction form
    13,698.36/18,903.78 = 7,410.75/x
  3. Step 3: Cross multiply
    13,698.36x = 18,903.78 × 7,410.75
  4. Step 4: Simplify right side
    13,698.36x = 140,091,187.64
  5. Step 5: Solve for x
    x = 140,091,187.64/13,698.36
  6. Step 6: Final answer
    x = 10,226.86

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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.