Home / 9,676.95-13,355.26-5,428.43

Finding the Fourth Proportional to 9,676.95, 13,355.26 and 5,428.43

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Solution

The fourth proportional to 9,676.95, 13,355.26 and 5,428.43 is: 7,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,676.95 : 13,355.26 = 5,428.43 : x
  2. Step 2: Convert to fraction form
    9,676.95/13,355.26 = 5,428.43/x
  3. Step 3: Cross multiply
    9,676.95x = 13,355.26 × 5,428.43
  4. Step 4: Simplify right side
    9,676.95x = 72,498,027.27
  5. Step 5: Solve for x
    x = 72,498,027.27/9,676.95
  6. Step 6: Final answer
    x = 7,491.83

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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.