Home / 18,438.10-25,446.75-10,481.51

Finding the Fourth Proportional to 18,438.10, 25,446.75 and 10,481.51

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Solution

The fourth proportional to 18,438.10, 25,446.75 and 10,481.51 is: 14,465.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.10 : 25,446.75 = 10,481.51 : x
  2. Step 2: Convert to fraction form
    18,438.10/25,446.75 = 10,481.51/x
  3. Step 3: Cross multiply
    18,438.10x = 25,446.75 × 10,481.51
  4. Step 4: Simplify right side
    18,438.10x = 266,720,428.21
  5. Step 5: Solve for x
    x = 266,720,428.21/18,438.10
  6. Step 6: Final answer
    x = 14,465.72

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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.