Home / 18,783.04-25,919.56-10,399

Finding the Fourth Proportional to 18,783.04, 25,919.56 and 10,399

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Solution

The fourth proportional to 18,783.04, 25,919.56 and 10,399 is: 14,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.04 : 25,919.56 = 10,399 : x
  2. Step 2: Convert to fraction form
    18,783.04/25,919.56 = 10,399/x
  3. Step 3: Cross multiply
    18,783.04x = 25,919.56 × 10,399
  4. Step 4: Simplify right side
    18,783.04x = 269,537,504.44
  5. Step 5: Solve for x
    x = 269,537,504.44/18,783.04
  6. Step 6: Final answer
    x = 14,350.05

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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.