Home / 11,872.40-16,384.18-6,567.60

Finding the Fourth Proportional to 11,872.40, 16,384.18 and 6,567.60

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Solution

The fourth proportional to 11,872.40, 16,384.18 and 6,567.60 is: 9,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.40 : 16,384.18 = 6,567.60 : x
  2. Step 2: Convert to fraction form
    11,872.40/16,384.18 = 6,567.60/x
  3. Step 3: Cross multiply
    11,872.40x = 16,384.18 × 6,567.60
  4. Step 4: Simplify right side
    11,872.40x = 107,604,740.57
  5. Step 5: Solve for x
    x = 107,604,740.57/11,872.40
  6. Step 6: Final answer
    x = 9,063.44

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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.