Home / 12,739.03-19,073.09-6,485.56

Finding the Fourth Proportional to 12,739.03, 19,073.09 and 6,485.56

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Solution

The fourth proportional to 12,739.03, 19,073.09 and 6,485.56 is: 9,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.03 : 19,073.09 = 6,485.56 : x
  2. Step 2: Convert to fraction form
    12,739.03/19,073.09 = 6,485.56/x
  3. Step 3: Cross multiply
    12,739.03x = 19,073.09 × 6,485.56
  4. Step 4: Simplify right side
    12,739.03x = 123,699,638.11
  5. Step 5: Solve for x
    x = 123,699,638.11/12,739.03
  6. Step 6: Final answer
    x = 9,710.29

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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.