Home / 18,767.43-25,904.79-10,815.03

Finding the Fourth Proportional to 18,767.43, 25,904.79 and 10,815.03

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Solution

The fourth proportional to 18,767.43, 25,904.79 and 10,815.03 is: 14,928.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.43 : 25,904.79 = 10,815.03 : x
  2. Step 2: Convert to fraction form
    18,767.43/25,904.79 = 10,815.03/x
  3. Step 3: Cross multiply
    18,767.43x = 25,904.79 × 10,815.03
  4. Step 4: Simplify right side
    18,767.43x = 280,161,080.99
  5. Step 5: Solve for x
    x = 280,161,080.99/18,767.43
  6. Step 6: Final answer
    x = 14,928.05

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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.