Home / 9,329.10-12,874.16-5,137.35

Finding the Fourth Proportional to 9,329.10, 12,874.16 and 5,137.35

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Solution

The fourth proportional to 9,329.10, 12,874.16 and 5,137.35 is: 7,089.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.10 : 12,874.16 = 5,137.35 : x
  2. Step 2: Convert to fraction form
    9,329.10/12,874.16 = 5,137.35/x
  3. Step 3: Cross multiply
    9,329.10x = 12,874.16 × 5,137.35
  4. Step 4: Simplify right side
    9,329.10x = 66,139,065.88
  5. Step 5: Solve for x
    x = 66,139,065.88/9,329.10
  6. Step 6: Final answer
    x = 7,089.54

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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.