Home / 13,151.30-19,739.10-6,582.20

Finding the Fourth Proportional to 13,151.30, 19,739.10 and 6,582.20

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Solution

The fourth proportional to 13,151.30, 19,739.10 and 6,582.20 is: 9,879.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.30 : 19,739.10 = 6,582.20 : x
  2. Step 2: Convert to fraction form
    13,151.30/19,739.10 = 6,582.20/x
  3. Step 3: Cross multiply
    13,151.30x = 19,739.10 × 6,582.20
  4. Step 4: Simplify right side
    13,151.30x = 129,926,704.02
  5. Step 5: Solve for x
    x = 129,926,704.02/13,151.30
  6. Step 6: Final answer
    x = 9,879.38

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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.