Home / 13,023.12-17,973.60-7,986.32

Finding the Fourth Proportional to 13,023.12, 17,973.60 and 7,986.32

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Solution

The fourth proportional to 13,023.12, 17,973.60 and 7,986.32 is: 11,022.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,023.12 : 17,973.60 = 7,986.32 : x
  2. Step 2: Convert to fraction form
    13,023.12/17,973.60 = 7,986.32/x
  3. Step 3: Cross multiply
    13,023.12x = 17,973.60 × 7,986.32
  4. Step 4: Simplify right side
    13,023.12x = 143,542,921.15
  5. Step 5: Solve for x
    x = 143,542,921.15/13,023.12
  6. Step 6: Final answer
    x = 11,022.16

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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.