Home / 12,726.09-19,063.60-6,485.85

Finding the Fourth Proportional to 12,726.09, 19,063.60 and 6,485.85

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Solution

The fourth proportional to 12,726.09, 19,063.60 and 6,485.85 is: 9,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.09 : 19,063.60 = 6,485.85 : x
  2. Step 2: Convert to fraction form
    12,726.09/19,063.60 = 6,485.85/x
  3. Step 3: Cross multiply
    12,726.09x = 19,063.60 × 6,485.85
  4. Step 4: Simplify right side
    12,726.09x = 123,643,650.06
  5. Step 5: Solve for x
    x = 123,643,650.06/12,726.09
  6. Step 6: Final answer
    x = 9,715.76

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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.