Home / 11,925.38-16,449.54-7,681.98

Finding the Fourth Proportional to 11,925.38, 16,449.54 and 7,681.98

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Solution

The fourth proportional to 11,925.38, 16,449.54 and 7,681.98 is: 10,596.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.38 : 16,449.54 = 7,681.98 : x
  2. Step 2: Convert to fraction form
    11,925.38/16,449.54 = 7,681.98/x
  3. Step 3: Cross multiply
    11,925.38x = 16,449.54 × 7,681.98
  4. Step 4: Simplify right side
    11,925.38x = 126,365,037.29
  5. Step 5: Solve for x
    x = 126,365,037.29/11,925.38
  6. Step 6: Final answer
    x = 10,596.31

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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.