Home / 12,223.76-18,306.70-7,765.48

Finding the Fourth Proportional to 12,223.76, 18,306.70 and 7,765.48

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Solution

The fourth proportional to 12,223.76, 18,306.70 and 7,765.48 is: 11,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.76 : 18,306.70 = 7,765.48 : x
  2. Step 2: Convert to fraction form
    12,223.76/18,306.70 = 7,765.48/x
  3. Step 3: Cross multiply
    12,223.76x = 18,306.70 × 7,765.48
  4. Step 4: Simplify right side
    12,223.76x = 142,160,312.72
  5. Step 5: Solve for x
    x = 142,160,312.72/12,223.76
  6. Step 6: Final answer
    x = 11,629.84

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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.