Home / 13,090.99-18,072.26-10,100.11

Finding the Fourth Proportional to 13,090.99, 18,072.26 and 10,100.11

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Solution

The fourth proportional to 13,090.99, 18,072.26 and 10,100.11 is: 13,943.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.99 : 18,072.26 = 10,100.11 : x
  2. Step 2: Convert to fraction form
    13,090.99/18,072.26 = 10,100.11/x
  3. Step 3: Cross multiply
    13,090.99x = 18,072.26 × 10,100.11
  4. Step 4: Simplify right side
    13,090.99x = 182,531,813.95
  5. Step 5: Solve for x
    x = 182,531,813.95/13,090.99
  6. Step 6: Final answer
    x = 13,943.32

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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.