Home / 12,977.55-19,453.37-6,408.45

Finding the Fourth Proportional to 12,977.55, 19,453.37 and 6,408.45

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Solution

The fourth proportional to 12,977.55, 19,453.37 and 6,408.45 is: 9,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.55 : 19,453.37 = 6,408.45 : x
  2. Step 2: Convert to fraction form
    12,977.55/19,453.37 = 6,408.45/x
  3. Step 3: Cross multiply
    12,977.55x = 19,453.37 × 6,408.45
  4. Step 4: Simplify right side
    12,977.55x = 124,665,916.93
  5. Step 5: Solve for x
    x = 124,665,916.93/12,977.55
  6. Step 6: Final answer
    x = 9,606.28

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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.