Home / 13,108.44-18,090.08-7,443.43

Finding the Fourth Proportional to 13,108.44, 18,090.08 and 7,443.43

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Solution

The fourth proportional to 13,108.44, 18,090.08 and 7,443.43 is: 10,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.44 : 18,090.08 = 7,443.43 : x
  2. Step 2: Convert to fraction form
    13,108.44/18,090.08 = 7,443.43/x
  3. Step 3: Cross multiply
    13,108.44x = 18,090.08 × 7,443.43
  4. Step 4: Simplify right side
    13,108.44x = 134,652,244.17
  5. Step 5: Solve for x
    x = 134,652,244.17/13,108.44
  6. Step 6: Final answer
    x = 10,272.18

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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.