Home / 11,120.64-16,669.32-5,270.28

Finding the Fourth Proportional to 11,120.64, 16,669.32 and 5,270.28

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Solution

The fourth proportional to 11,120.64, 16,669.32 and 5,270.28 is: 7,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.64 : 16,669.32 = 5,270.28 : x
  2. Step 2: Convert to fraction form
    11,120.64/16,669.32 = 5,270.28/x
  3. Step 3: Cross multiply
    11,120.64x = 16,669.32 × 5,270.28
  4. Step 4: Simplify right side
    11,120.64x = 87,851,983.81
  5. Step 5: Solve for x
    x = 87,851,983.81/11,120.64
  6. Step 6: Final answer
    x = 7,899.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.