Home / 9,739.80-14,620.64-3,900.51

Finding the Fourth Proportional to 9,739.80, 14,620.64 and 3,900.51

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Solution

The fourth proportional to 9,739.80, 14,620.64 and 3,900.51 is: 5,855.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.80 : 14,620.64 = 3,900.51 : x
  2. Step 2: Convert to fraction form
    9,739.80/14,620.64 = 3,900.51/x
  3. Step 3: Cross multiply
    9,739.80x = 14,620.64 × 3,900.51
  4. Step 4: Simplify right side
    9,739.80x = 57,027,933.02
  5. Step 5: Solve for x
    x = 57,027,933.02/9,739.80
  6. Step 6: Final answer
    x = 5,855.14

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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.