Home / 8,140.89-12,191.43-7,352.04

Finding the Fourth Proportional to 8,140.89, 12,191.43 and 7,352.04

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Solution

The fourth proportional to 8,140.89, 12,191.43 and 7,352.04 is: 11,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.89 : 12,191.43 = 7,352.04 : x
  2. Step 2: Convert to fraction form
    8,140.89/12,191.43 = 7,352.04/x
  3. Step 3: Cross multiply
    8,140.89x = 12,191.43 × 7,352.04
  4. Step 4: Simplify right side
    8,140.89x = 89,631,881.02
  5. Step 5: Solve for x
    x = 89,631,881.02/8,140.89
  6. Step 6: Final answer
    x = 11,010.08

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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.