Home / 8,307.84-12,459.07-2,759.70

Finding the Fourth Proportional to 8,307.84, 12,459.07 and 2,759.70

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Solution

The fourth proportional to 8,307.84, 12,459.07 and 2,759.70 is: 4,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.84 : 12,459.07 = 2,759.70 : x
  2. Step 2: Convert to fraction form
    8,307.84/12,459.07 = 2,759.70/x
  3. Step 3: Cross multiply
    8,307.84x = 12,459.07 × 2,759.70
  4. Step 4: Simplify right side
    8,307.84x = 34,383,242.47
  5. Step 5: Solve for x
    x = 34,383,242.47/8,307.84
  6. Step 6: Final answer
    x = 4,138.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.