Home / 9,007.78-12,419.48-6,885.94

Finding the Fourth Proportional to 9,007.78, 12,419.48 and 6,885.94

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Solution

The fourth proportional to 9,007.78, 12,419.48 and 6,885.94 is: 9,493.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.78 : 12,419.48 = 6,885.94 : x
  2. Step 2: Convert to fraction form
    9,007.78/12,419.48 = 6,885.94/x
  3. Step 3: Cross multiply
    9,007.78x = 12,419.48 × 6,885.94
  4. Step 4: Simplify right side
    9,007.78x = 85,519,794.11
  5. Step 5: Solve for x
    x = 85,519,794.11/9,007.78
  6. Step 6: Final answer
    x = 9,493.99

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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.