Home / 13,027.30-17,987.06-7,998.34

Finding the Fourth Proportional to 13,027.30, 17,987.06 and 7,998.34

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Solution

The fourth proportional to 13,027.30, 17,987.06 and 7,998.34 is: 11,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.30 : 17,987.06 = 7,998.34 : x
  2. Step 2: Convert to fraction form
    13,027.30/17,987.06 = 7,998.34/x
  3. Step 3: Cross multiply
    13,027.30x = 17,987.06 × 7,998.34
  4. Step 4: Simplify right side
    13,027.30x = 143,866,596.51
  5. Step 5: Solve for x
    x = 143,866,596.51/13,027.30
  6. Step 6: Final answer
    x = 11,043.47

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Double scale
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Similar ratio
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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.