Home / 11,125.36-15,356.46-6,412.96

Finding the Fourth Proportional to 11,125.36, 15,356.46 and 6,412.96

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Solution

The fourth proportional to 11,125.36, 15,356.46 and 6,412.96 is: 8,851.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.36 : 15,356.46 = 6,412.96 : x
  2. Step 2: Convert to fraction form
    11,125.36/15,356.46 = 6,412.96/x
  3. Step 3: Cross multiply
    11,125.36x = 15,356.46 × 6,412.96
  4. Step 4: Simplify right side
    11,125.36x = 98,480,363.72
  5. Step 5: Solve for x
    x = 98,480,363.72/11,125.36
  6. Step 6: Final answer
    x = 8,851.88

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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.