Home / 8,968.49-12,374.64-5,191.43

Finding the Fourth Proportional to 8,968.49, 12,374.64 and 5,191.43

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Solution

The fourth proportional to 8,968.49, 12,374.64 and 5,191.43 is: 7,163.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.49 : 12,374.64 = 5,191.43 : x
  2. Step 2: Convert to fraction form
    8,968.49/12,374.64 = 5,191.43/x
  3. Step 3: Cross multiply
    8,968.49x = 12,374.64 × 5,191.43
  4. Step 4: Simplify right side
    8,968.49x = 64,242,026.93
  5. Step 5: Solve for x
    x = 64,242,026.93/8,968.49
  6. Step 6: Final answer
    x = 7,163.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.