Home / 18,575.16-25,605.37-11,391.77

Finding the Fourth Proportional to 18,575.16, 25,605.37 and 11,391.77

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Solution

The fourth proportional to 18,575.16, 25,605.37 and 11,391.77 is: 15,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,575.16 : 25,605.37 = 11,391.77 : x
  2. Step 2: Convert to fraction form
    18,575.16/25,605.37 = 11,391.77/x
  3. Step 3: Cross multiply
    18,575.16x = 25,605.37 × 11,391.77
  4. Step 4: Simplify right side
    18,575.16x = 291,690,564.06
  5. Step 5: Solve for x
    x = 291,690,564.06/18,575.16
  6. Step 6: Final answer
    x = 15,703.26

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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.