Home / 18,718.11-25,830.99-10,761.89

Finding the Fourth Proportional to 18,718.11, 25,830.99 and 10,761.89

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Solution

The fourth proportional to 18,718.11, 25,830.99 and 10,761.89 is: 14,851.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.11 : 25,830.99 = 10,761.89 : x
  2. Step 2: Convert to fraction form
    18,718.11/25,830.99 = 10,761.89/x
  3. Step 3: Cross multiply
    18,718.11x = 25,830.99 × 10,761.89
  4. Step 4: Simplify right side
    18,718.11x = 277,990,143.82
  5. Step 5: Solve for x
    x = 277,990,143.82/18,718.11
  6. Step 6: Final answer
    x = 14,851.40

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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.