Home / 8,385.09-12,572.82-6,484.74

Finding the Fourth Proportional to 8,385.09, 12,572.82 and 6,484.74

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Solution

The fourth proportional to 8,385.09, 12,572.82 and 6,484.74 is: 9,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.09 : 12,572.82 = 6,484.74 : x
  2. Step 2: Convert to fraction form
    8,385.09/12,572.82 = 6,484.74/x
  3. Step 3: Cross multiply
    8,385.09x = 12,572.82 × 6,484.74
  4. Step 4: Simplify right side
    8,385.09x = 81,531,468.77
  5. Step 5: Solve for x
    x = 81,531,468.77/8,385.09
  6. Step 6: Final answer
    x = 9,723.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.