Home / 13,145.09-19,717.22-4,379.77

Finding the Fourth Proportional to 13,145.09, 19,717.22 and 4,379.77

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Solution

The fourth proportional to 13,145.09, 19,717.22 and 4,379.77 is: 6,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.09 : 19,717.22 = 4,379.77 : x
  2. Step 2: Convert to fraction form
    13,145.09/19,717.22 = 4,379.77/x
  3. Step 3: Cross multiply
    13,145.09x = 19,717.22 × 4,379.77
  4. Step 4: Simplify right side
    13,145.09x = 86,356,924.24
  5. Step 5: Solve for x
    x = 86,356,924.24/13,145.09
  6. Step 6: Final answer
    x = 6,569.52

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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.