Home / 18,976.78-26,187.66-10,479.76

Finding the Fourth Proportional to 18,976.78, 26,187.66 and 10,479.76

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Solution

The fourth proportional to 18,976.78, 26,187.66 and 10,479.76 is: 14,461.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.78 : 26,187.66 = 10,479.76 : x
  2. Step 2: Convert to fraction form
    18,976.78/26,187.66 = 10,479.76/x
  3. Step 3: Cross multiply
    18,976.78x = 26,187.66 × 10,479.76
  4. Step 4: Simplify right side
    18,976.78x = 274,440,391.76
  5. Step 5: Solve for x
    x = 274,440,391.76/18,976.78
  6. Step 6: Final answer
    x = 14,461.91

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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.