Home / 19,458.77-26,855.13-11,910.13

Finding the Fourth Proportional to 19,458.77, 26,855.13 and 11,910.13

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Solution

The fourth proportional to 19,458.77, 26,855.13 and 11,910.13 is: 16,437.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.77 : 26,855.13 = 11,910.13 : x
  2. Step 2: Convert to fraction form
    19,458.77/26,855.13 = 11,910.13/x
  3. Step 3: Cross multiply
    19,458.77x = 26,855.13 × 11,910.13
  4. Step 4: Simplify right side
    19,458.77x = 319,847,992.55
  5. Step 5: Solve for x
    x = 319,847,992.55/19,458.77
  6. Step 6: Final answer
    x = 16,437.21

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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.