Home / 18,826.56-25,981.08-10,443.60

Finding the Fourth Proportional to 18,826.56, 25,981.08 and 10,443.60

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Solution

The fourth proportional to 18,826.56, 25,981.08 and 10,443.60 is: 14,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.56 : 25,981.08 = 10,443.60 : x
  2. Step 2: Convert to fraction form
    18,826.56/25,981.08 = 10,443.60/x
  3. Step 3: Cross multiply
    18,826.56x = 25,981.08 × 10,443.60
  4. Step 4: Simplify right side
    18,826.56x = 271,336,007.09
  5. Step 5: Solve for x
    x = 271,336,007.09/18,826.56
  6. Step 6: Final answer
    x = 14,412.40

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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.