Home / 9,182.36-12,671.80-4,990.62

Finding the Fourth Proportional to 9,182.36, 12,671.80 and 4,990.62

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Solution

The fourth proportional to 9,182.36, 12,671.80 and 4,990.62 is: 6,887.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,182.36 : 12,671.80 = 4,990.62 : x
  2. Step 2: Convert to fraction form
    9,182.36/12,671.80 = 4,990.62/x
  3. Step 3: Cross multiply
    9,182.36x = 12,671.80 × 4,990.62
  4. Step 4: Simplify right side
    9,182.36x = 63,240,138.52
  5. Step 5: Solve for x
    x = 63,240,138.52/9,182.36
  6. Step 6: Final answer
    x = 6,887.13

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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.