Home / 11,971.56-16,542.18-9,325.80

Finding the Fourth Proportional to 11,971.56, 16,542.18 and 9,325.80

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Solution

The fourth proportional to 11,971.56, 16,542.18 and 9,325.80 is: 12,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.56 : 16,542.18 = 9,325.80 : x
  2. Step 2: Convert to fraction form
    11,971.56/16,542.18 = 9,325.80/x
  3. Step 3: Cross multiply
    11,971.56x = 16,542.18 × 9,325.80
  4. Step 4: Simplify right side
    11,971.56x = 154,269,062.24
  5. Step 5: Solve for x
    x = 154,269,062.24/11,971.56
  6. Step 6: Final answer
    x = 12,886.30

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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.