Home / 18,880.21-26,055.35-10,382.68

Finding the Fourth Proportional to 18,880.21, 26,055.35 and 10,382.68

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Solution

The fourth proportional to 18,880.21, 26,055.35 and 10,382.68 is: 14,328.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.21 : 26,055.35 = 10,382.68 : x
  2. Step 2: Convert to fraction form
    18,880.21/26,055.35 = 10,382.68/x
  3. Step 3: Cross multiply
    18,880.21x = 26,055.35 × 10,382.68
  4. Step 4: Simplify right side
    18,880.21x = 270,524,361.34
  5. Step 5: Solve for x
    x = 270,524,361.34/18,880.21
  6. Step 6: Final answer
    x = 14,328.46

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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.