Home / 11,975.61-16,526.36-6,940.80

Finding the Fourth Proportional to 11,975.61, 16,526.36 and 6,940.80

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Solution

The fourth proportional to 11,975.61, 16,526.36 and 6,940.80 is: 9,578.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.61 : 16,526.36 = 6,940.80 : x
  2. Step 2: Convert to fraction form
    11,975.61/16,526.36 = 6,940.80/x
  3. Step 3: Cross multiply
    11,975.61x = 16,526.36 × 6,940.80
  4. Step 4: Simplify right side
    11,975.61x = 114,706,159.49
  5. Step 5: Solve for x
    x = 114,706,159.49/11,975.61
  6. Step 6: Final answer
    x = 9,578.31

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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.