Home / 11,875.39-17,814.60-4,379.45

Finding the Fourth Proportional to 11,875.39, 17,814.60 and 4,379.45

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Solution

The fourth proportional to 11,875.39, 17,814.60 and 4,379.45 is: 6,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,875.39 : 17,814.60 = 4,379.45 : x
  2. Step 2: Convert to fraction form
    11,875.39/17,814.60 = 4,379.45/x
  3. Step 3: Cross multiply
    11,875.39x = 17,814.60 × 4,379.45
  4. Step 4: Simplify right side
    11,875.39x = 78,018,060.90
  5. Step 5: Solve for x
    x = 78,018,060.90/11,875.39
  6. Step 6: Final answer
    x = 6,569.73

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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.