Home / 8,239.77-11,371.59-4,655.39

Finding the Fourth Proportional to 8,239.77, 11,371.59 and 4,655.39

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Solution

The fourth proportional to 8,239.77, 11,371.59 and 4,655.39 is: 6,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.77 : 11,371.59 = 4,655.39 : x
  2. Step 2: Convert to fraction form
    8,239.77/11,371.59 = 4,655.39/x
  3. Step 3: Cross multiply
    8,239.77x = 11,371.59 × 4,655.39
  4. Step 4: Simplify right side
    8,239.77x = 52,939,157.85
  5. Step 5: Solve for x
    x = 52,939,157.85/8,239.77
  6. Step 6: Final answer
    x = 6,424.83

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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.