Home / 8,339.30-11,508.40-4,986.82

Finding the Fourth Proportional to 8,339.30, 11,508.40 and 4,986.82

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Solution

The fourth proportional to 8,339.30, 11,508.40 and 4,986.82 is: 6,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.30 : 11,508.40 = 4,986.82 : x
  2. Step 2: Convert to fraction form
    8,339.30/11,508.40 = 4,986.82/x
  3. Step 3: Cross multiply
    8,339.30x = 11,508.40 × 4,986.82
  4. Step 4: Simplify right side
    8,339.30x = 57,390,289.20
  5. Step 5: Solve for x
    x = 57,390,289.20/8,339.30
  6. Step 6: Final answer
    x = 6,881.90

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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.