Home / 8,627.72-12,941.87-2,387.21

Finding the Fourth Proportional to 8,627.72, 12,941.87 and 2,387.21

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Solution

The fourth proportional to 8,627.72, 12,941.87 and 2,387.21 is: 3,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.72 : 12,941.87 = 2,387.21 : x
  2. Step 2: Convert to fraction form
    8,627.72/12,941.87 = 2,387.21/x
  3. Step 3: Cross multiply
    8,627.72x = 12,941.87 × 2,387.21
  4. Step 4: Simplify right side
    8,627.72x = 30,894,943.63
  5. Step 5: Solve for x
    x = 30,894,943.63/8,627.72
  6. Step 6: Final answer
    x = 3,580.89

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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.