Home / 18,878.77-26,053.38-10,381.54

Finding the Fourth Proportional to 18,878.77, 26,053.38 and 10,381.54

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Solution

The fourth proportional to 18,878.77, 26,053.38 and 10,381.54 is: 14,326.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.77 : 26,053.38 = 10,381.54 : x
  2. Step 2: Convert to fraction form
    18,878.77/26,053.38 = 10,381.54/x
  3. Step 3: Cross multiply
    18,878.77x = 26,053.38 × 10,381.54
  4. Step 4: Simplify right side
    18,878.77x = 270,474,122.13
  5. Step 5: Solve for x
    x = 270,474,122.13/18,878.77
  6. Step 6: Final answer
    x = 14,326.89

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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.