Home / 18,426.14-25,428.75-10,469.72

Finding the Fourth Proportional to 18,426.14, 25,428.75 and 10,469.72

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Solution

The fourth proportional to 18,426.14, 25,428.75 and 10,469.72 is: 14,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.14 : 25,428.75 = 10,469.72 : x
  2. Step 2: Convert to fraction form
    18,426.14/25,428.75 = 10,469.72/x
  3. Step 3: Cross multiply
    18,426.14x = 25,428.75 × 10,469.72
  4. Step 4: Simplify right side
    18,426.14x = 266,231,765.31
  5. Step 5: Solve for x
    x = 266,231,765.31/18,426.14
  6. Step 6: Final answer
    x = 14,448.60

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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.