Home / 8,484.22-12,702.58-6,397.69

Finding the Fourth Proportional to 8,484.22, 12,702.58 and 6,397.69

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Solution

The fourth proportional to 8,484.22, 12,702.58 and 6,397.69 is: 9,578.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.22 : 12,702.58 = 6,397.69 : x
  2. Step 2: Convert to fraction form
    8,484.22/12,702.58 = 6,397.69/x
  3. Step 3: Cross multiply
    8,484.22x = 12,702.58 × 6,397.69
  4. Step 4: Simplify right side
    8,484.22x = 81,267,192.92
  5. Step 5: Solve for x
    x = 81,267,192.92/8,484.22
  6. Step 6: Final answer
    x = 9,578.63

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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.