Home / 18,428.67-25,430.27-10,874.61

Finding the Fourth Proportional to 18,428.67, 25,430.27 and 10,874.61

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Solution

The fourth proportional to 18,428.67, 25,430.27 and 10,874.61 is: 15,006.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.67 : 25,430.27 = 10,874.61 : x
  2. Step 2: Convert to fraction form
    18,428.67/25,430.27 = 10,874.61/x
  3. Step 3: Cross multiply
    18,428.67x = 25,430.27 × 10,874.61
  4. Step 4: Simplify right side
    18,428.67x = 276,544,214.07
  5. Step 5: Solve for x
    x = 276,544,214.07/18,428.67
  6. Step 6: Final answer
    x = 15,006.19

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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.