Home / 11,675.18-16,110.39-6,639.98

Finding the Fourth Proportional to 11,675.18, 16,110.39 and 6,639.98

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Solution

The fourth proportional to 11,675.18, 16,110.39 and 6,639.98 is: 9,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,675.18 : 16,110.39 = 6,639.98 : x
  2. Step 2: Convert to fraction form
    11,675.18/16,110.39 = 6,639.98/x
  3. Step 3: Cross multiply
    11,675.18x = 16,110.39 × 6,639.98
  4. Step 4: Simplify right side
    11,675.18x = 106,972,667.39
  5. Step 5: Solve for x
    x = 106,972,667.39/11,675.18
  6. Step 6: Final answer
    x = 9,162.40

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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.