Home / 11,090.88-15,313.10-10,385.10

Finding the Fourth Proportional to 11,090.88, 15,313.10 and 10,385.10

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Solution

The fourth proportional to 11,090.88, 15,313.10 and 10,385.10 is: 14,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.88 : 15,313.10 = 10,385.10 : x
  2. Step 2: Convert to fraction form
    11,090.88/15,313.10 = 10,385.10/x
  3. Step 3: Cross multiply
    11,090.88x = 15,313.10 × 10,385.10
  4. Step 4: Simplify right side
    11,090.88x = 159,028,022.88
  5. Step 5: Solve for x
    x = 159,028,022.88/11,090.88
  6. Step 6: Final answer
    x = 14,338.63

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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.