Home / 13,233.88-18,271.30-8,203.45

Finding the Fourth Proportional to 13,233.88, 18,271.30 and 8,203.45

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Solution

The fourth proportional to 13,233.88, 18,271.30 and 8,203.45 is: 11,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,233.88 : 18,271.30 = 8,203.45 : x
  2. Step 2: Convert to fraction form
    13,233.88/18,271.30 = 8,203.45/x
  3. Step 3: Cross multiply
    13,233.88x = 18,271.30 × 8,203.45
  4. Step 4: Simplify right side
    13,233.88x = 149,887,695.99
  5. Step 5: Solve for x
    x = 149,887,695.99/13,233.88
  6. Step 6: Final answer
    x = 11,326.06

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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.