Home / 18,391.08-25,379.94-10,007.40

Finding the Fourth Proportional to 18,391.08, 25,379.94 and 10,007.40

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Solution

The fourth proportional to 18,391.08, 25,379.94 and 10,007.40 is: 13,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,391.08 : 25,379.94 = 10,007.40 : x
  2. Step 2: Convert to fraction form
    18,391.08/25,379.94 = 10,007.40/x
  3. Step 3: Cross multiply
    18,391.08x = 25,379.94 × 10,007.40
  4. Step 4: Simplify right side
    18,391.08x = 253,987,211.56
  5. Step 5: Solve for x
    x = 253,987,211.56/18,391.08
  6. Step 6: Final answer
    x = 13,810.35

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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.