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Finding the Fourth Proportional to 8,334.40, 11,501.40 and 4,749.80

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Solution

The fourth proportional to 8,334.40, 11,501.40 and 4,749.80 is: 6,554.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.40 : 11,501.40 = 4,749.80 : x
  2. Step 2: Convert to fraction form
    8,334.40/11,501.40 = 4,749.80/x
  3. Step 3: Cross multiply
    8,334.40x = 11,501.40 × 4,749.80
  4. Step 4: Simplify right side
    8,334.40x = 54,629,349.72
  5. Step 5: Solve for x
    x = 54,629,349.72/8,334.40
  6. Step 6: Final answer
    x = 6,554.68

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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.