Home / 9,182.88-12,672.32-4,991.13

Finding the Fourth Proportional to 9,182.88, 12,672.32 and 4,991.13

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Solution

The fourth proportional to 9,182.88, 12,672.32 and 4,991.13 is: 6,887.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.88 : 12,672.32 = 4,991.13 : x
  2. Step 2: Convert to fraction form
    9,182.88/12,672.32 = 4,991.13/x
  3. Step 3: Cross multiply
    9,182.88x = 12,672.32 × 4,991.13
  4. Step 4: Simplify right side
    9,182.88x = 63,249,171.57
  5. Step 5: Solve for x
    x = 63,249,171.57/9,182.88
  6. Step 6: Final answer
    x = 6,887.73

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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.