Home / 13,107.72-18,090.30-7,444.31

Finding the Fourth Proportional to 13,107.72, 18,090.30 and 7,444.31

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Solution

The fourth proportional to 13,107.72, 18,090.30 and 7,444.31 is: 10,274.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.72 : 18,090.30 = 7,444.31 : x
  2. Step 2: Convert to fraction form
    13,107.72/18,090.30 = 7,444.31/x
  3. Step 3: Cross multiply
    13,107.72x = 18,090.30 × 7,444.31
  4. Step 4: Simplify right side
    13,107.72x = 134,669,738.66
  5. Step 5: Solve for x
    x = 134,669,738.66/13,107.72
  6. Step 6: Final answer
    x = 10,274.08

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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.