Home / 9,945.40-14,900.10-4,739.80

Finding the Fourth Proportional to 9,945.40, 14,900.10 and 4,739.80

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Solution

The fourth proportional to 9,945.40, 14,900.10 and 4,739.80 is: 7,101.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,945.40 : 14,900.10 = 4,739.80 : x
  2. Step 2: Convert to fraction form
    9,945.40/14,900.10 = 4,739.80/x
  3. Step 3: Cross multiply
    9,945.40x = 14,900.10 × 4,739.80
  4. Step 4: Simplify right side
    9,945.40x = 70,623,493.98
  5. Step 5: Solve for x
    x = 70,623,493.98/9,945.40
  6. Step 6: Final answer
    x = 7,101.12

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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.