Home / 18,871.25-26,042.34-10,487.75

Finding the Fourth Proportional to 18,871.25, 26,042.34 and 10,487.75

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Solution

The fourth proportional to 18,871.25, 26,042.34 and 10,487.75 is: 14,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871.25 : 26,042.34 = 10,487.75 : x
  2. Step 2: Convert to fraction form
    18,871.25/26,042.34 = 10,487.75/x
  3. Step 3: Cross multiply
    18,871.25x = 26,042.34 × 10,487.75
  4. Step 4: Simplify right side
    18,871.25x = 273,125,551.34
  5. Step 5: Solve for x
    x = 273,125,551.34/18,871.25
  6. Step 6: Final answer
    x = 14,473.10

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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.