Home / 8,349.77-12,518.73-4,186.78

Finding the Fourth Proportional to 8,349.77, 12,518.73 and 4,186.78

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Solution

The fourth proportional to 8,349.77, 12,518.73 and 4,186.78 is: 6,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.77 : 12,518.73 = 4,186.78 : x
  2. Step 2: Convert to fraction form
    8,349.77/12,518.73 = 4,186.78/x
  3. Step 3: Cross multiply
    8,349.77x = 12,518.73 × 4,186.78
  4. Step 4: Simplify right side
    8,349.77x = 52,413,168.39
  5. Step 5: Solve for x
    x = 52,413,168.39/8,349.77
  6. Step 6: Final answer
    x = 6,277.20

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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.