Home / 12,765.01-19,128.03-5,365.44

Finding the Fourth Proportional to 12,765.01, 19,128.03 and 5,365.44

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Solution

The fourth proportional to 12,765.01, 19,128.03 and 5,365.44 is: 8,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.01 : 19,128.03 = 5,365.44 : x
  2. Step 2: Convert to fraction form
    12,765.01/19,128.03 = 5,365.44/x
  3. Step 3: Cross multiply
    12,765.01x = 19,128.03 × 5,365.44
  4. Step 4: Simplify right side
    12,765.01x = 102,630,297.28
  5. Step 5: Solve for x
    x = 102,630,297.28/12,765.01
  6. Step 6: Final answer
    x = 8,039.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.