Home / 8,465.09-12,700.67-3,784.73

Finding the Fourth Proportional to 8,465.09, 12,700.67 and 3,784.73

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Solution

The fourth proportional to 8,465.09, 12,700.67 and 3,784.73 is: 5,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.09 : 12,700.67 = 3,784.73 : x
  2. Step 2: Convert to fraction form
    8,465.09/12,700.67 = 3,784.73/x
  3. Step 3: Cross multiply
    8,465.09x = 12,700.67 × 3,784.73
  4. Step 4: Simplify right side
    8,465.09x = 48,068,524.34
  5. Step 5: Solve for x
    x = 48,068,524.34/8,465.09
  6. Step 6: Final answer
    x = 5,678.45

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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.