Home / 18,787.82-25,928.01-10,404.32

Finding the Fourth Proportional to 18,787.82, 25,928.01 and 10,404.32

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Solution

The fourth proportional to 18,787.82, 25,928.01 and 10,404.32 is: 14,358.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.82 : 25,928.01 = 10,404.32 : x
  2. Step 2: Convert to fraction form
    18,787.82/25,928.01 = 10,404.32/x
  3. Step 3: Cross multiply
    18,787.82x = 25,928.01 × 10,404.32
  4. Step 4: Simplify right side
    18,787.82x = 269,763,313.00
  5. Step 5: Solve for x
    x = 269,763,313.00/18,787.82
  6. Step 6: Final answer
    x = 14,358.41

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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.