Home / 18,723.75-25,838.81-10,340.25

Finding the Fourth Proportional to 18,723.75, 25,838.81 and 10,340.25

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Solution

The fourth proportional to 18,723.75, 25,838.81 and 10,340.25 is: 14,269.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.75 : 25,838.81 = 10,340.25 : x
  2. Step 2: Convert to fraction form
    18,723.75/25,838.81 = 10,340.25/x
  3. Step 3: Cross multiply
    18,723.75x = 25,838.81 × 10,340.25
  4. Step 4: Simplify right side
    18,723.75x = 267,179,703.40
  5. Step 5: Solve for x
    x = 267,179,703.40/18,723.75
  6. Step 6: Final answer
    x = 14,269.56

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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.