Home / 19,447.81-26,837.26-11,891.32

Finding the Fourth Proportional to 19,447.81, 26,837.26 and 11,891.32

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Solution

The fourth proportional to 19,447.81, 26,837.26 and 11,891.32 is: 16,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.81 : 26,837.26 = 11,891.32 : x
  2. Step 2: Convert to fraction form
    19,447.81/26,837.26 = 11,891.32/x
  3. Step 3: Cross multiply
    19,447.81x = 26,837.26 × 11,891.32
  4. Step 4: Simplify right side
    19,447.81x = 319,130,446.58
  5. Step 5: Solve for x
    x = 319,130,446.58/19,447.81
  6. Step 6: Final answer
    x = 16,409.58

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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.