Home / 12,665.41-18,997.90-4,875.91

Finding the Fourth Proportional to 12,665.41, 18,997.90 and 4,875.91

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Solution

The fourth proportional to 12,665.41, 18,997.90 and 4,875.91 is: 7,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,665.41 : 18,997.90 = 4,875.91 : x
  2. Step 2: Convert to fraction form
    12,665.41/18,997.90 = 4,875.91/x
  3. Step 3: Cross multiply
    12,665.41x = 18,997.90 × 4,875.91
  4. Step 4: Simplify right side
    12,665.41x = 92,632,050.59
  5. Step 5: Solve for x
    x = 92,632,050.59/12,665.41
  6. Step 6: Final answer
    x = 7,313.78

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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.