Home / 13,023.36-17,973.96-7,986.54

Finding the Fourth Proportional to 13,023.36, 17,973.96 and 7,986.54

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Solution

The fourth proportional to 13,023.36, 17,973.96 and 7,986.54 is: 11,022.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.36 : 17,973.96 = 7,986.54 : x
  2. Step 2: Convert to fraction form
    13,023.36/17,973.96 = 7,986.54/x
  3. Step 3: Cross multiply
    13,023.36x = 17,973.96 × 7,986.54
  4. Step 4: Simplify right side
    13,023.36x = 143,549,750.50
  5. Step 5: Solve for x
    x = 143,549,750.50/13,023.36
  6. Step 6: Final answer
    x = 11,022.48

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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.