Home / 13,325.23-18,388.97-7,356.91

Finding the Fourth Proportional to 13,325.23, 18,388.97 and 7,356.91

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Solution

The fourth proportional to 13,325.23, 18,388.97 and 7,356.91 is: 10,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.23 : 18,388.97 = 7,356.91 : x
  2. Step 2: Convert to fraction form
    13,325.23/18,388.97 = 7,356.91/x
  3. Step 3: Cross multiply
    13,325.23x = 18,388.97 × 7,356.91
  4. Step 4: Simplify right side
    13,325.23x = 135,285,997.28
  5. Step 5: Solve for x
    x = 135,285,997.28/13,325.23
  6. Step 6: Final answer
    x = 10,152.62

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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.