Home / 19,418.58-26,797-10,921.07

Finding the Fourth Proportional to 19,418.58, 26,797 and 10,921.07

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Solution

The fourth proportional to 19,418.58, 26,797 and 10,921.07 is: 15,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.58 : 26,797 = 10,921.07 : x
  2. Step 2: Convert to fraction form
    19,418.58/26,797 = 10,921.07/x
  3. Step 3: Cross multiply
    19,418.58x = 26,797 × 10,921.07
  4. Step 4: Simplify right side
    19,418.58x = 292,651,912.79
  5. Step 5: Solve for x
    x = 292,651,912.79/19,418.58
  6. Step 6: Final answer
    x = 15,070.72

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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.