Home / 9,317.70-12,859.16-5,339.79

Finding the Fourth Proportional to 9,317.70, 12,859.16 and 5,339.79

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Solution

The fourth proportional to 9,317.70, 12,859.16 and 5,339.79 is: 7,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.70 : 12,859.16 = 5,339.79 : x
  2. Step 2: Convert to fraction form
    9,317.70/12,859.16 = 5,339.79/x
  3. Step 3: Cross multiply
    9,317.70x = 12,859.16 × 5,339.79
  4. Step 4: Simplify right side
    9,317.70x = 68,665,187.28
  5. Step 5: Solve for x
    x = 68,665,187.28/9,317.70
  6. Step 6: Final answer
    x = 7,369.33

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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.