Home / 13,655.44-18,841.14-8,348.32

Finding the Fourth Proportional to 13,655.44, 18,841.14 and 8,348.32

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Solution

The fourth proportional to 13,655.44, 18,841.14 and 8,348.32 is: 11,518.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.44 : 18,841.14 = 8,348.32 : x
  2. Step 2: Convert to fraction form
    13,655.44/18,841.14 = 8,348.32/x
  3. Step 3: Cross multiply
    13,655.44x = 18,841.14 × 8,348.32
  4. Step 4: Simplify right side
    13,655.44x = 157,291,865.88
  5. Step 5: Solve for x
    x = 157,291,865.88/13,655.44
  6. Step 6: Final answer
    x = 11,518.62

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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.