Home / 18,635.37-25,718.63-13,911.45

Finding the Fourth Proportional to 18,635.37, 25,718.63 and 13,911.45

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Solution

The fourth proportional to 18,635.37, 25,718.63 and 13,911.45 is: 19,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,635.37 : 25,718.63 = 13,911.45 : x
  2. Step 2: Convert to fraction form
    18,635.37/25,718.63 = 13,911.45/x
  3. Step 3: Cross multiply
    18,635.37x = 25,718.63 × 13,911.45
  4. Step 4: Simplify right side
    18,635.37x = 357,783,365.76
  5. Step 5: Solve for x
    x = 357,783,365.76/18,635.37
  6. Step 6: Final answer
    x = 19,199.16

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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.