Home / 17,145.78-23,661.05-9,975.83

Finding the Fourth Proportional to 17,145.78, 23,661.05 and 9,975.83

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Solution

The fourth proportional to 17,145.78, 23,661.05 and 9,975.83 is: 13,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.78 : 23,661.05 = 9,975.83 : x
  2. Step 2: Convert to fraction form
    17,145.78/23,661.05 = 9,975.83/x
  3. Step 3: Cross multiply
    17,145.78x = 23,661.05 × 9,975.83
  4. Step 4: Simplify right side
    17,145.78x = 236,038,444.24
  5. Step 5: Solve for x
    x = 236,038,444.24/17,145.78
  6. Step 6: Final answer
    x = 13,766.57

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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.