Home / 14,058.54-19,400.49-7,770.78

Finding the Fourth Proportional to 14,058.54, 19,400.49 and 7,770.78

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Solution

The fourth proportional to 14,058.54, 19,400.49 and 7,770.78 is: 10,723.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,058.54 : 19,400.49 = 7,770.78 : x
  2. Step 2: Convert to fraction form
    14,058.54/19,400.49 = 7,770.78/x
  3. Step 3: Cross multiply
    14,058.54x = 19,400.49 × 7,770.78
  4. Step 4: Simplify right side
    14,058.54x = 150,756,939.68
  5. Step 5: Solve for x
    x = 150,756,939.68/14,058.54
  6. Step 6: Final answer
    x = 10,723.51

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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.