Home / 18,295.07-25,247.30-9,911.57

Finding the Fourth Proportional to 18,295.07, 25,247.30 and 9,911.57

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Solution

The fourth proportional to 18,295.07, 25,247.30 and 9,911.57 is: 13,678.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.07 : 25,247.30 = 9,911.57 : x
  2. Step 2: Convert to fraction form
    18,295.07/25,247.30 = 9,911.57/x
  3. Step 3: Cross multiply
    18,295.07x = 25,247.30 × 9,911.57
  4. Step 4: Simplify right side
    18,295.07x = 250,240,205.47
  5. Step 5: Solve for x
    x = 250,240,205.47/18,295.07
  6. Step 6: Final answer
    x = 13,678.02

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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.