Home / 9,479.05-13,081.21-5,230.28

Finding the Fourth Proportional to 9,479.05, 13,081.21 and 5,230.28

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Solution

The fourth proportional to 9,479.05, 13,081.21 and 5,230.28 is: 7,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.05 : 13,081.21 = 5,230.28 : x
  2. Step 2: Convert to fraction form
    9,479.05/13,081.21 = 5,230.28/x
  3. Step 3: Cross multiply
    9,479.05x = 13,081.21 × 5,230.28
  4. Step 4: Simplify right side
    9,479.05x = 68,418,364.89
  5. Step 5: Solve for x
    x = 68,418,364.89/9,479.05
  6. Step 6: Final answer
    x = 7,217.85

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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.