Home / 19,556.39-26,980.74-12,845.63

Finding the Fourth Proportional to 19,556.39, 26,980.74 and 12,845.63

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Solution

The fourth proportional to 19,556.39, 26,980.74 and 12,845.63 is: 17,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.39 : 26,980.74 = 12,845.63 : x
  2. Step 2: Convert to fraction form
    19,556.39/26,980.74 = 12,845.63/x
  3. Step 3: Cross multiply
    19,556.39x = 26,980.74 × 12,845.63
  4. Step 4: Simplify right side
    19,556.39x = 346,584,468.26
  5. Step 5: Solve for x
    x = 346,584,468.26/19,556.39
  6. Step 6: Final answer
    x = 17,722.32

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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.