Home / 8,130.56-12,191.48-2,582.40

Finding the Fourth Proportional to 8,130.56, 12,191.48 and 2,582.40

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Solution

The fourth proportional to 8,130.56, 12,191.48 and 2,582.40 is: 3,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.56 : 12,191.48 = 2,582.40 : x
  2. Step 2: Convert to fraction form
    8,130.56/12,191.48 = 2,582.40/x
  3. Step 3: Cross multiply
    8,130.56x = 12,191.48 × 2,582.40
  4. Step 4: Simplify right side
    8,130.56x = 31,483,277.95
  5. Step 5: Solve for x
    x = 31,483,277.95/8,130.56
  6. Step 6: Final answer
    x = 3,872.22

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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.