Home / 9,307.42-12,843.70-5,115.67

Finding the Fourth Proportional to 9,307.42, 12,843.70 and 5,115.67

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Solution

The fourth proportional to 9,307.42, 12,843.70 and 5,115.67 is: 7,059.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.42 : 12,843.70 = 5,115.67 : x
  2. Step 2: Convert to fraction form
    9,307.42/12,843.70 = 5,115.67/x
  3. Step 3: Cross multiply
    9,307.42x = 12,843.70 × 5,115.67
  4. Step 4: Simplify right side
    9,307.42x = 65,704,130.78
  5. Step 5: Solve for x
    x = 65,704,130.78/9,307.42
  6. Step 6: Final answer
    x = 7,059.33

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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.