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Finding the Fourth Proportional to 8,393.83, 12,590.44 and 3,459.76

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Solution

The fourth proportional to 8,393.83, 12,590.44 and 3,459.76 is: 5,189.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.83 : 12,590.44 = 3,459.76 : x
  2. Step 2: Convert to fraction form
    8,393.83/12,590.44 = 3,459.76/x
  3. Step 3: Cross multiply
    8,393.83x = 12,590.44 × 3,459.76
  4. Step 4: Simplify right side
    8,393.83x = 43,559,931.39
  5. Step 5: Solve for x
    x = 43,559,931.39/8,393.83
  6. Step 6: Final answer
    x = 5,189.52

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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.