Home / 11,747.42-16,211.40-6,442.10

Finding the Fourth Proportional to 11,747.42, 16,211.40 and 6,442.10

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Solution

The fourth proportional to 11,747.42, 16,211.40 and 6,442.10 is: 8,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.42 : 16,211.40 = 6,442.10 : x
  2. Step 2: Convert to fraction form
    11,747.42/16,211.40 = 6,442.10/x
  3. Step 3: Cross multiply
    11,747.42x = 16,211.40 × 6,442.10
  4. Step 4: Simplify right side
    11,747.42x = 104,435,459.94
  5. Step 5: Solve for x
    x = 104,435,459.94/11,747.42
  6. Step 6: Final answer
    x = 8,890.08

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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.