Home / 13,590.21-18,739.29-8,548.26

Finding the Fourth Proportional to 13,590.21, 18,739.29 and 8,548.26

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Solution

The fourth proportional to 13,590.21, 18,739.29 and 8,548.26 is: 11,787.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.21 : 18,739.29 = 8,548.26 : x
  2. Step 2: Convert to fraction form
    13,590.21/18,739.29 = 8,548.26/x
  3. Step 3: Cross multiply
    13,590.21x = 18,739.29 × 8,548.26
  4. Step 4: Simplify right side
    13,590.21x = 160,188,323.14
  5. Step 5: Solve for x
    x = 160,188,323.14/13,590.21
  6. Step 6: Final answer
    x = 11,787.04

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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.