Home / 18,426.07-25,428.05-10,042.57

Finding the Fourth Proportional to 18,426.07, 25,428.05 and 10,042.57

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Solution

The fourth proportional to 18,426.07, 25,428.05 and 10,042.57 is: 13,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.07 : 25,428.05 = 10,042.57 : x
  2. Step 2: Convert to fraction form
    18,426.07/25,428.05 = 10,042.57/x
  3. Step 3: Cross multiply
    18,426.07x = 25,428.05 × 10,042.57
  4. Step 4: Simplify right side
    18,426.07x = 255,362,972.09
  5. Step 5: Solve for x
    x = 255,362,972.09/18,426.07
  6. Step 6: Final answer
    x = 13,858.79

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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.