Home / 18,666.48-25,758.03-11,111.61

Finding the Fourth Proportional to 18,666.48, 25,758.03 and 11,111.61

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Solution

The fourth proportional to 18,666.48, 25,758.03 and 11,111.61 is: 15,333.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666.48 : 25,758.03 = 11,111.61 : x
  2. Step 2: Convert to fraction form
    18,666.48/25,758.03 = 11,111.61/x
  3. Step 3: Cross multiply
    18,666.48x = 25,758.03 × 11,111.61
  4. Step 4: Simplify right side
    18,666.48x = 286,213,183.73
  5. Step 5: Solve for x
    x = 286,213,183.73/18,666.48
  6. Step 6: Final answer
    x = 15,333.00

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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.