Home / 11,876.77-16,390.43-6,571.50

Finding the Fourth Proportional to 11,876.77, 16,390.43 and 6,571.50

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Solution

The fourth proportional to 11,876.77, 16,390.43 and 6,571.50 is: 9,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.77 : 16,390.43 = 6,571.50 : x
  2. Step 2: Convert to fraction form
    11,876.77/16,390.43 = 6,571.50/x
  3. Step 3: Cross multiply
    11,876.77x = 16,390.43 × 6,571.50
  4. Step 4: Simplify right side
    11,876.77x = 107,709,710.75
  5. Step 5: Solve for x
    x = 107,709,710.75/11,876.77
  6. Step 6: Final answer
    x = 9,068.94

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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.