Home / 12,519.92-18,784.73-5,127.86

Finding the Fourth Proportional to 12,519.92, 18,784.73 and 5,127.86

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Solution

The fourth proportional to 12,519.92, 18,784.73 and 5,127.86 is: 7,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.92 : 18,784.73 = 5,127.86 : x
  2. Step 2: Convert to fraction form
    12,519.92/18,784.73 = 5,127.86/x
  3. Step 3: Cross multiply
    12,519.92x = 18,784.73 × 5,127.86
  4. Step 4: Simplify right side
    12,519.92x = 96,325,384.47
  5. Step 5: Solve for x
    x = 96,325,384.47/12,519.92
  6. Step 6: Final answer
    x = 7,693.77

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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.