Home / 13,058.24-18,020.64-7,469.12

Finding the Fourth Proportional to 13,058.24, 18,020.64 and 7,469.12

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Solution

The fourth proportional to 13,058.24, 18,020.64 and 7,469.12 is: 10,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.24 : 18,020.64 = 7,469.12 : x
  2. Step 2: Convert to fraction form
    13,058.24/18,020.64 = 7,469.12/x
  3. Step 3: Cross multiply
    13,058.24x = 18,020.64 × 7,469.12
  4. Step 4: Simplify right side
    13,058.24x = 134,598,322.64
  5. Step 5: Solve for x
    x = 134,598,322.64/13,058.24
  6. Step 6: Final answer
    x = 10,307.54

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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.