Home / 9,307.08-12,843.90-5,115.42

Finding the Fourth Proportional to 9,307.08, 12,843.90 and 5,115.42

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Solution

The fourth proportional to 9,307.08, 12,843.90 and 5,115.42 is: 7,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.08 : 12,843.90 = 5,115.42 : x
  2. Step 2: Convert to fraction form
    9,307.08/12,843.90 = 5,115.42/x
  3. Step 3: Cross multiply
    9,307.08x = 12,843.90 × 5,115.42
  4. Step 4: Simplify right side
    9,307.08x = 65,701,942.94
  5. Step 5: Solve for x
    x = 65,701,942.94/9,307.08
  6. Step 6: Final answer
    x = 7,059.35

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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.