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Finding the Fourth Proportional to 8,507.83, 12,712.94 and 6,495.39

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Solution

The fourth proportional to 8,507.83, 12,712.94 and 6,495.39 is: 9,705.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.83 : 12,712.94 = 6,495.39 : x
  2. Step 2: Convert to fraction form
    8,507.83/12,712.94 = 6,495.39/x
  3. Step 3: Cross multiply
    8,507.83x = 12,712.94 × 6,495.39
  4. Step 4: Simplify right side
    8,507.83x = 82,575,503.35
  5. Step 5: Solve for x
    x = 82,575,503.35/8,507.83
  6. Step 6: Final answer
    x = 9,705.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.