Home / 12,040.34-18,058.84-3,720.63

Finding the Fourth Proportional to 12,040.34, 18,058.84 and 3,720.63

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Solution

The fourth proportional to 12,040.34, 18,058.84 and 3,720.63 is: 5,580.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.34 : 18,058.84 = 3,720.63 : x
  2. Step 2: Convert to fraction form
    12,040.34/18,058.84 = 3,720.63/x
  3. Step 3: Cross multiply
    12,040.34x = 18,058.84 × 3,720.63
  4. Step 4: Simplify right side
    12,040.34x = 67,190,261.87
  5. Step 5: Solve for x
    x = 67,190,261.87/12,040.34
  6. Step 6: Final answer
    x = 5,580.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.