Home / 11,128.52-15,352.14-6,410.06

Finding the Fourth Proportional to 11,128.52, 15,352.14 and 6,410.06

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Solution

The fourth proportional to 11,128.52, 15,352.14 and 6,410.06 is: 8,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.52 : 15,352.14 = 6,410.06 : x
  2. Step 2: Convert to fraction form
    11,128.52/15,352.14 = 6,410.06/x
  3. Step 3: Cross multiply
    11,128.52x = 15,352.14 × 6,410.06
  4. Step 4: Simplify right side
    11,128.52x = 98,408,138.53
  5. Step 5: Solve for x
    x = 98,408,138.53/11,128.52
  6. Step 6: Final answer
    x = 8,842.88

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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.