Home / 11,616.38-16,030.61-6,311.28

Finding the Fourth Proportional to 11,616.38, 16,030.61 and 6,311.28

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Solution

The fourth proportional to 11,616.38, 16,030.61 and 6,311.28 is: 8,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,616.38 : 16,030.61 = 6,311.28 : x
  2. Step 2: Convert to fraction form
    11,616.38/16,030.61 = 6,311.28/x
  3. Step 3: Cross multiply
    11,616.38x = 16,030.61 × 6,311.28
  4. Step 4: Simplify right side
    11,616.38x = 101,173,720.51
  5. Step 5: Solve for x
    x = 101,173,720.51/11,616.38
  6. Step 6: Final answer
    x = 8,709.57

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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.