Home / 12,354.03-18,509.49-10,287.33

Finding the Fourth Proportional to 12,354.03, 18,509.49 and 10,287.33

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Solution

The fourth proportional to 12,354.03, 18,509.49 and 10,287.33 is: 15,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.03 : 18,509.49 = 10,287.33 : x
  2. Step 2: Convert to fraction form
    12,354.03/18,509.49 = 10,287.33/x
  3. Step 3: Cross multiply
    12,354.03x = 18,509.49 × 10,287.33
  4. Step 4: Simplify right side
    12,354.03x = 190,413,231.76
  5. Step 5: Solve for x
    x = 190,413,231.76/12,354.03
  6. Step 6: Final answer
    x = 15,413.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.