Home / 18,783.56-25,921.62-10,400.06

Finding the Fourth Proportional to 18,783.56, 25,921.62 and 10,400.06

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Solution

The fourth proportional to 18,783.56, 25,921.62 and 10,400.06 is: 14,352.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.56 : 25,921.62 = 10,400.06 : x
  2. Step 2: Convert to fraction form
    18,783.56/25,921.62 = 10,400.06/x
  3. Step 3: Cross multiply
    18,783.56x = 25,921.62 × 10,400.06
  4. Step 4: Simplify right side
    18,783.56x = 269,586,468.10
  5. Step 5: Solve for x
    x = 269,586,468.10/18,783.56
  6. Step 6: Final answer
    x = 14,352.25

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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.