Home / 13,230.03-18,257.67-7,261.35

Finding the Fourth Proportional to 13,230.03, 18,257.67 and 7,261.35

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Solution

The fourth proportional to 13,230.03, 18,257.67 and 7,261.35 is: 10,020.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.03 : 18,257.67 = 7,261.35 : x
  2. Step 2: Convert to fraction form
    13,230.03/18,257.67 = 7,261.35/x
  3. Step 3: Cross multiply
    13,230.03x = 18,257.67 × 7,261.35
  4. Step 4: Simplify right side
    13,230.03x = 132,575,332.05
  5. Step 5: Solve for x
    x = 132,575,332.05/13,230.03
  6. Step 6: Final answer
    x = 10,020.79

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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.