Home / 18,786.76-25,919.85-10,827.91

Finding the Fourth Proportional to 18,786.76, 25,919.85 and 10,827.91

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Solution

The fourth proportional to 18,786.76, 25,919.85 and 10,827.91 is: 14,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.76 : 25,919.85 = 10,827.91 : x
  2. Step 2: Convert to fraction form
    18,786.76/25,919.85 = 10,827.91/x
  3. Step 3: Cross multiply
    18,786.76x = 25,919.85 × 10,827.91
  4. Step 4: Simplify right side
    18,786.76x = 280,657,803.01
  5. Step 5: Solve for x
    x = 280,657,803.01/18,786.76
  6. Step 6: Final answer
    x = 14,939.13

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Double scale
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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.