Home / 14,065.36-19,410.60-7,778.32

Finding the Fourth Proportional to 14,065.36, 19,410.60 and 7,778.32

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Solution

The fourth proportional to 14,065.36, 19,410.60 and 7,778.32 is: 10,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.36 : 19,410.60 = 7,778.32 : x
  2. Step 2: Convert to fraction form
    14,065.36/19,410.60 = 7,778.32/x
  3. Step 3: Cross multiply
    14,065.36x = 19,410.60 × 7,778.32
  4. Step 4: Simplify right side
    14,065.36x = 150,981,858.19
  5. Step 5: Solve for x
    x = 150,981,858.19/14,065.36
  6. Step 6: Final answer
    x = 10,734.30

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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.