Home / 8,819.32-13,160.81-7,837.60

Finding the Fourth Proportional to 8,819.32, 13,160.81 and 7,837.60

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Solution

The fourth proportional to 8,819.32, 13,160.81 and 7,837.60 is: 11,695.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.32 : 13,160.81 = 7,837.60 : x
  2. Step 2: Convert to fraction form
    8,819.32/13,160.81 = 7,837.60/x
  3. Step 3: Cross multiply
    8,819.32x = 13,160.81 × 7,837.60
  4. Step 4: Simplify right side
    8,819.32x = 103,149,164.46
  5. Step 5: Solve for x
    x = 103,149,164.46/8,819.32
  6. Step 6: Final answer
    x = 11,695.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.