Home / 18,537.68-25,572.36-11,369.28

Finding the Fourth Proportional to 18,537.68, 25,572.36 and 11,369.28

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Solution

The fourth proportional to 18,537.68, 25,572.36 and 11,369.28 is: 15,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,537.68 : 25,572.36 = 11,369.28 : x
  2. Step 2: Convert to fraction form
    18,537.68/25,572.36 = 11,369.28/x
  3. Step 3: Cross multiply
    18,537.68x = 25,572.36 × 11,369.28
  4. Step 4: Simplify right side
    18,537.68x = 290,739,321.10
  5. Step 5: Solve for x
    x = 290,739,321.10/18,537.68
  6. Step 6: Final answer
    x = 15,683.70

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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.