Home / 7,919.67-10,916.55-6,238.41

Finding the Fourth Proportional to 7,919.67, 10,916.55 and 6,238.41

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Solution

The fourth proportional to 7,919.67, 10,916.55 and 6,238.41 is: 8,599.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.67 : 10,916.55 = 6,238.41 : x
  2. Step 2: Convert to fraction form
    7,919.67/10,916.55 = 6,238.41/x
  3. Step 3: Cross multiply
    7,919.67x = 10,916.55 × 6,238.41
  4. Step 4: Simplify right side
    7,919.67x = 68,101,914.69
  5. Step 5: Solve for x
    x = 68,101,914.69/7,919.67
  6. Step 6: Final answer
    x = 8,599.08

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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.