Home / 18,733.78-25,853.10-10,776.76

Finding the Fourth Proportional to 18,733.78, 25,853.10 and 10,776.76

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Solution

The fourth proportional to 18,733.78, 25,853.10 and 10,776.76 is: 14,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.78 : 25,853.10 = 10,776.76 : x
  2. Step 2: Convert to fraction form
    18,733.78/25,853.10 = 10,776.76/x
  3. Step 3: Cross multiply
    18,733.78x = 25,853.10 × 10,776.76
  4. Step 4: Simplify right side
    18,733.78x = 278,612,653.96
  5. Step 5: Solve for x
    x = 278,612,653.96/18,733.78
  6. Step 6: Final answer
    x = 14,872.21

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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.