Home / 19,278.68-26,604.22-10,780.28

Finding the Fourth Proportional to 19,278.68, 26,604.22 and 10,780.28

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Solution

The fourth proportional to 19,278.68, 26,604.22 and 10,780.28 is: 14,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.68 : 26,604.22 = 10,780.28 : x
  2. Step 2: Convert to fraction form
    19,278.68/26,604.22 = 10,780.28/x
  3. Step 3: Cross multiply
    19,278.68x = 26,604.22 × 10,780.28
  4. Step 4: Simplify right side
    19,278.68x = 286,800,940.78
  5. Step 5: Solve for x
    x = 286,800,940.78/19,278.68
  6. Step 6: Final answer
    x = 14,876.59

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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.