Home / 18,818.12-25,969.04-10,434.60

Finding the Fourth Proportional to 18,818.12, 25,969.04 and 10,434.60

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Solution

The fourth proportional to 18,818.12, 25,969.04 and 10,434.60 is: 14,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.12 : 25,969.04 = 10,434.60 : x
  2. Step 2: Convert to fraction form
    18,818.12/25,969.04 = 10,434.60/x
  3. Step 3: Cross multiply
    18,818.12x = 25,969.04 × 10,434.60
  4. Step 4: Simplify right side
    18,818.12x = 270,976,544.78
  5. Step 5: Solve for x
    x = 270,976,544.78/18,818.12
  6. Step 6: Final answer
    x = 14,399.77

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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.