Home / 12,977.57-19,441.74-7,701.43

Finding the Fourth Proportional to 12,977.57, 19,441.74 and 7,701.43

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Solution

The fourth proportional to 12,977.57, 19,441.74 and 7,701.43 is: 11,537.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.57 : 19,441.74 = 7,701.43 : x
  2. Step 2: Convert to fraction form
    12,977.57/19,441.74 = 7,701.43/x
  3. Step 3: Cross multiply
    12,977.57x = 19,441.74 × 7,701.43
  4. Step 4: Simplify right side
    12,977.57x = 149,729,199.69
  5. Step 5: Solve for x
    x = 149,729,199.69/12,977.57
  6. Step 6: Final answer
    x = 11,537.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.