Home / 18,684.36-25,783.25-10,720.98

Finding the Fourth Proportional to 18,684.36, 25,783.25 and 10,720.98

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Solution

The fourth proportional to 18,684.36, 25,783.25 and 10,720.98 is: 14,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.36 : 25,783.25 = 10,720.98 : x
  2. Step 2: Convert to fraction form
    18,684.36/25,783.25 = 10,720.98/x
  3. Step 3: Cross multiply
    18,684.36x = 25,783.25 × 10,720.98
  4. Step 4: Simplify right side
    18,684.36x = 276,421,653.98
  5. Step 5: Solve for x
    x = 276,421,653.98/18,684.36
  6. Step 6: Final answer
    x = 14,794.28

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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.