Home / 15,129.78-22,685.42-6,242.36

Finding the Fourth Proportional to 15,129.78, 22,685.42 and 6,242.36

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Solution

The fourth proportional to 15,129.78, 22,685.42 and 6,242.36 is: 9,359.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.78 : 22,685.42 = 6,242.36 : x
  2. Step 2: Convert to fraction form
    15,129.78/22,685.42 = 6,242.36/x
  3. Step 3: Cross multiply
    15,129.78x = 22,685.42 × 6,242.36
  4. Step 4: Simplify right side
    15,129.78x = 141,610,413.75
  5. Step 5: Solve for x
    x = 141,610,413.75/15,129.78
  6. Step 6: Final answer
    x = 9,359.71

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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.