Home / 9,861.22-13,609.65-5,554.45

Finding the Fourth Proportional to 9,861.22, 13,609.65 and 5,554.45

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Solution

The fourth proportional to 9,861.22, 13,609.65 and 5,554.45 is: 7,665.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.22 : 13,609.65 = 5,554.45 : x
  2. Step 2: Convert to fraction form
    9,861.22/13,609.65 = 5,554.45/x
  3. Step 3: Cross multiply
    9,861.22x = 13,609.65 × 5,554.45
  4. Step 4: Simplify right side
    9,861.22x = 75,594,101.85
  5. Step 5: Solve for x
    x = 75,594,101.85/9,861.22
  6. Step 6: Final answer
    x = 7,665.80

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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.