Home / 11,925.49-16,456.35-6,619.89

Finding the Fourth Proportional to 11,925.49, 16,456.35 and 6,619.89

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Solution

The fourth proportional to 11,925.49, 16,456.35 and 6,619.89 is: 9,134.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.49 : 16,456.35 = 6,619.89 : x
  2. Step 2: Convert to fraction form
    11,925.49/16,456.35 = 6,619.89/x
  3. Step 3: Cross multiply
    11,925.49x = 16,456.35 × 6,619.89
  4. Step 4: Simplify right side
    11,925.49x = 108,939,226.80
  5. Step 5: Solve for x
    x = 108,939,226.80/11,925.49
  6. Step 6: Final answer
    x = 9,134.99

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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.