Home / 9,369.26-12,929.18-5,120.26

Finding the Fourth Proportional to 9,369.26, 12,929.18 and 5,120.26

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Solution

The fourth proportional to 9,369.26, 12,929.18 and 5,120.26 is: 7,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.26 : 12,929.18 = 5,120.26 : x
  2. Step 2: Convert to fraction form
    9,369.26/12,929.18 = 5,120.26/x
  3. Step 3: Cross multiply
    9,369.26x = 12,929.18 × 5,120.26
  4. Step 4: Simplify right side
    9,369.26x = 66,200,763.19
  5. Step 5: Solve for x
    x = 66,200,763.19/9,369.26
  6. Step 6: Final answer
    x = 7,065.74

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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.