Home / 13,977.56-19,286.92-7,927.48

Finding the Fourth Proportional to 13,977.56, 19,286.92 and 7,927.48

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Solution

The fourth proportional to 13,977.56, 19,286.92 and 7,927.48 is: 10,938.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.56 : 19,286.92 = 7,927.48 : x
  2. Step 2: Convert to fraction form
    13,977.56/19,286.92 = 7,927.48/x
  3. Step 3: Cross multiply
    13,977.56x = 19,286.92 × 7,927.48
  4. Step 4: Simplify right side
    13,977.56x = 152,896,672.56
  5. Step 5: Solve for x
    x = 152,896,672.56/13,977.56
  6. Step 6: Final answer
    x = 10,938.72

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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.