Home / 18,878.37-26,052.81-10,381.13

Finding the Fourth Proportional to 18,878.37, 26,052.81 and 10,381.13

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Solution

The fourth proportional to 18,878.37, 26,052.81 and 10,381.13 is: 14,326.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.37 : 26,052.81 = 10,381.13 : x
  2. Step 2: Convert to fraction form
    18,878.37/26,052.81 = 10,381.13/x
  3. Step 3: Cross multiply
    18,878.37x = 26,052.81 × 10,381.13
  4. Step 4: Simplify right side
    18,878.37x = 270,457,711.54
  5. Step 5: Solve for x
    x = 270,457,711.54/18,878.37
  6. Step 6: Final answer
    x = 14,326.33

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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.