Home / 18,738.36-25,858.98-10,355.40

Finding the Fourth Proportional to 18,738.36, 25,858.98 and 10,355.40

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Solution

The fourth proportional to 18,738.36, 25,858.98 and 10,355.40 is: 14,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.36 : 25,858.98 = 10,355.40 : x
  2. Step 2: Convert to fraction form
    18,738.36/25,858.98 = 10,355.40/x
  3. Step 3: Cross multiply
    18,738.36x = 25,858.98 × 10,355.40
  4. Step 4: Simplify right side
    18,738.36x = 267,780,081.49
  5. Step 5: Solve for x
    x = 267,780,081.49/18,738.36
  6. Step 6: Final answer
    x = 14,290.48

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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.