Home / 11,876.09-16,389.34-6,571.40

Finding the Fourth Proportional to 11,876.09, 16,389.34 and 6,571.40

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Solution

The fourth proportional to 11,876.09, 16,389.34 and 6,571.40 is: 9,068.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,876.09 : 16,389.34 = 6,571.40 : x
  2. Step 2: Convert to fraction form
    11,876.09/16,389.34 = 6,571.40/x
  3. Step 3: Cross multiply
    11,876.09x = 16,389.34 × 6,571.40
  4. Step 4: Simplify right side
    11,876.09x = 107,700,810.50
  5. Step 5: Solve for x
    x = 107,700,810.50/11,876.09
  6. Step 6: Final answer
    x = 9,068.71

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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.