Home / 18,886.13-26,063.43-10,387.81

Finding the Fourth Proportional to 18,886.13, 26,063.43 and 10,387.81

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Solution

The fourth proportional to 18,886.13, 26,063.43 and 10,387.81 is: 14,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.13 : 26,063.43 = 10,387.81 : x
  2. Step 2: Convert to fraction form
    18,886.13/26,063.43 = 10,387.81/x
  3. Step 3: Cross multiply
    18,886.13x = 26,063.43 × 10,387.81
  4. Step 4: Simplify right side
    18,886.13x = 270,741,893.63
  5. Step 5: Solve for x
    x = 270,741,893.63/18,886.13
  6. Step 6: Final answer
    x = 14,335.49

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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.