Home / 19,770.87-27,283.77-10,818.37

Finding the Fourth Proportional to 19,770.87, 27,283.77 and 10,818.37

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Solution

The fourth proportional to 19,770.87, 27,283.77 and 10,818.37 is: 14,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.87 : 27,283.77 = 10,818.37 : x
  2. Step 2: Convert to fraction form
    19,770.87/27,283.77 = 10,818.37/x
  3. Step 3: Cross multiply
    19,770.87x = 27,283.77 × 10,818.37
  4. Step 4: Simplify right side
    19,770.87x = 295,166,036.97
  5. Step 5: Solve for x
    x = 295,166,036.97/19,770.87
  6. Step 6: Final answer
    x = 14,929.34

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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.