Home / 8,130.15-12,191.77-2,582.01

Finding the Fourth Proportional to 8,130.15, 12,191.77 and 2,582.01

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Solution

The fourth proportional to 8,130.15, 12,191.77 and 2,582.01 is: 3,871.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.15 : 12,191.77 = 2,582.01 : x
  2. Step 2: Convert to fraction form
    8,130.15/12,191.77 = 2,582.01/x
  3. Step 3: Cross multiply
    8,130.15x = 12,191.77 × 2,582.01
  4. Step 4: Simplify right side
    8,130.15x = 31,479,272.06
  5. Step 5: Solve for x
    x = 31,479,272.06/8,130.15
  6. Step 6: Final answer
    x = 3,871.92

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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.