Home / 9,182.80-12,672.30-4,991.02

Finding the Fourth Proportional to 9,182.80, 12,672.30 and 4,991.02

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Solution

The fourth proportional to 9,182.80, 12,672.30 and 4,991.02 is: 6,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.80 : 12,672.30 = 4,991.02 : x
  2. Step 2: Convert to fraction form
    9,182.80/12,672.30 = 4,991.02/x
  3. Step 3: Cross multiply
    9,182.80x = 12,672.30 × 4,991.02
  4. Step 4: Simplify right side
    9,182.80x = 63,247,702.75
  5. Step 5: Solve for x
    x = 63,247,702.75/9,182.80
  6. Step 6: Final answer
    x = 6,887.63

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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.