Home / 13,291.44-18,342.20-7,323.06

Finding the Fourth Proportional to 13,291.44, 18,342.20 and 7,323.06

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Solution

The fourth proportional to 13,291.44, 18,342.20 and 7,323.06 is: 10,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.44 : 18,342.20 = 7,323.06 : x
  2. Step 2: Convert to fraction form
    13,291.44/18,342.20 = 7,323.06/x
  3. Step 3: Cross multiply
    13,291.44x = 18,342.20 × 7,323.06
  4. Step 4: Simplify right side
    13,291.44x = 134,320,994.52
  5. Step 5: Solve for x
    x = 134,320,994.52/13,291.44
  6. Step 6: Final answer
    x = 10,105.83

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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.