Home / 9,408.49-12,983.96-5,319.96

Finding the Fourth Proportional to 9,408.49, 12,983.96 and 5,319.96

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Solution

The fourth proportional to 9,408.49, 12,983.96 and 5,319.96 is: 7,341.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408.49 : 12,983.96 = 5,319.96 : x
  2. Step 2: Convert to fraction form
    9,408.49/12,983.96 = 5,319.96/x
  3. Step 3: Cross multiply
    9,408.49x = 12,983.96 × 5,319.96
  4. Step 4: Simplify right side
    9,408.49x = 69,074,147.84
  5. Step 5: Solve for x
    x = 69,074,147.84/9,408.49
  6. Step 6: Final answer
    x = 7,341.68

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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.