Home / 18,783.28-25,920.97-10,169.55

Finding the Fourth Proportional to 18,783.28, 25,920.97 and 10,169.55

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Solution

The fourth proportional to 18,783.28, 25,920.97 and 10,169.55 is: 14,034.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.28 : 25,920.97 = 10,169.55 : x
  2. Step 2: Convert to fraction form
    18,783.28/25,920.97 = 10,169.55/x
  3. Step 3: Cross multiply
    18,783.28x = 25,920.97 × 10,169.55
  4. Step 4: Simplify right side
    18,783.28x = 263,604,575.04
  5. Step 5: Solve for x
    x = 263,604,575.04/18,783.28
  6. Step 6: Final answer
    x = 14,034.00

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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.