Home / 12,145.48-16,760.45-6,839.98

Finding the Fourth Proportional to 12,145.48, 16,760.45 and 6,839.98

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Solution

The fourth proportional to 12,145.48, 16,760.45 and 6,839.98 is: 9,438.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.48 : 16,760.45 = 6,839.98 : x
  2. Step 2: Convert to fraction form
    12,145.48/16,760.45 = 6,839.98/x
  3. Step 3: Cross multiply
    12,145.48x = 16,760.45 × 6,839.98
  4. Step 4: Simplify right side
    12,145.48x = 114,641,108.59
  5. Step 5: Solve for x
    x = 114,641,108.59/12,145.48
  6. Step 6: Final answer
    x = 9,438.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.