Home / 11,940.84-17,877.47-9,126.45

Finding the Fourth Proportional to 11,940.84, 17,877.47 and 9,126.45

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Solution

The fourth proportional to 11,940.84, 17,877.47 and 9,126.45 is: 13,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.84 : 17,877.47 = 9,126.45 : x
  2. Step 2: Convert to fraction form
    11,940.84/17,877.47 = 9,126.45/x
  3. Step 3: Cross multiply
    11,940.84x = 17,877.47 × 9,126.45
  4. Step 4: Simplify right side
    11,940.84x = 163,157,790.45
  5. Step 5: Solve for x
    x = 163,157,790.45/11,940.84
  6. Step 6: Final answer
    x = 13,663.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.