Home / 11,554.81-15,945.64-6,520.10

Finding the Fourth Proportional to 11,554.81, 15,945.64 and 6,520.10

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Solution

The fourth proportional to 11,554.81, 15,945.64 and 6,520.10 is: 8,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,554.81 : 15,945.64 = 6,520.10 : x
  2. Step 2: Convert to fraction form
    11,554.81/15,945.64 = 6,520.10/x
  3. Step 3: Cross multiply
    11,554.81x = 15,945.64 × 6,520.10
  4. Step 4: Simplify right side
    11,554.81x = 103,967,087.64
  5. Step 5: Solve for x
    x = 103,967,087.64/11,554.81
  6. Step 6: Final answer
    x = 8,997.73

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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.