Home / 8,856.09-13,285.97-7,405.38

Finding the Fourth Proportional to 8,856.09, 13,285.97 and 7,405.38

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Solution

The fourth proportional to 8,856.09, 13,285.97 and 7,405.38 is: 11,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.09 : 13,285.97 = 7,405.38 : x
  2. Step 2: Convert to fraction form
    8,856.09/13,285.97 = 7,405.38/x
  3. Step 3: Cross multiply
    8,856.09x = 13,285.97 × 7,405.38
  4. Step 4: Simplify right side
    8,856.09x = 98,387,619.49
  5. Step 5: Solve for x
    x = 98,387,619.49/8,856.09
  6. Step 6: Final answer
    x = 11,109.60

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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.