Home / 13,058.15-18,021.35-7,393.88

Finding the Fourth Proportional to 13,058.15, 18,021.35 and 7,393.88

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Solution

The fourth proportional to 13,058.15, 18,021.35 and 7,393.88 is: 10,204.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.15 : 18,021.35 = 7,393.88 : x
  2. Step 2: Convert to fraction form
    13,058.15/18,021.35 = 7,393.88/x
  3. Step 3: Cross multiply
    13,058.15x = 18,021.35 × 7,393.88
  4. Step 4: Simplify right side
    13,058.15x = 133,247,762.88
  5. Step 5: Solve for x
    x = 133,247,762.88/13,058.15
  6. Step 6: Final answer
    x = 10,204.19

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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.