Home / 15,719.48-23,582.12-5,190.23

Finding the Fourth Proportional to 15,719.48, 23,582.12 and 5,190.23

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Solution

The fourth proportional to 15,719.48, 23,582.12 and 5,190.23 is: 7,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,719.48 : 23,582.12 = 5,190.23 : x
  2. Step 2: Convert to fraction form
    15,719.48/23,582.12 = 5,190.23/x
  3. Step 3: Cross multiply
    15,719.48x = 23,582.12 × 5,190.23
  4. Step 4: Simplify right side
    15,719.48x = 122,396,610.19
  5. Step 5: Solve for x
    x = 122,396,610.19/15,719.48
  6. Step 6: Final answer
    x = 7,786.30

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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.