Home / 19,782.08-27,296.16-11,397.44

Finding the Fourth Proportional to 19,782.08, 27,296.16 and 11,397.44

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Solution

The fourth proportional to 19,782.08, 27,296.16 and 11,397.44 is: 15,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.08 : 27,296.16 = 11,397.44 : x
  2. Step 2: Convert to fraction form
    19,782.08/27,296.16 = 11,397.44/x
  3. Step 3: Cross multiply
    19,782.08x = 27,296.16 × 11,397.44
  4. Step 4: Simplify right side
    19,782.08x = 311,106,345.83
  5. Step 5: Solve for x
    x = 311,106,345.83/19,782.08
  6. Step 6: Final answer
    x = 15,726.68

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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.