Home / 13,170.48-19,771.16-10,399.02

Finding the Fourth Proportional to 13,170.48, 19,771.16 and 10,399.02

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Solution

The fourth proportional to 13,170.48, 19,771.16 and 10,399.02 is: 15,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.48 : 19,771.16 = 10,399.02 : x
  2. Step 2: Convert to fraction form
    13,170.48/19,771.16 = 10,399.02/x
  3. Step 3: Cross multiply
    13,170.48x = 19,771.16 × 10,399.02
  4. Step 4: Simplify right side
    13,170.48x = 205,600,636.27
  5. Step 5: Solve for x
    x = 205,600,636.27/13,170.48
  6. Step 6: Final answer
    x = 15,610.72

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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.