Home / 19,382.70-29,056.77-7,687.92

Finding the Fourth Proportional to 19,382.70, 29,056.77 and 7,687.92

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Solution

The fourth proportional to 19,382.70, 29,056.77 and 7,687.92 is: 11,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,382.70 : 29,056.77 = 7,687.92 : x
  2. Step 2: Convert to fraction form
    19,382.70/29,056.77 = 7,687.92/x
  3. Step 3: Cross multiply
    19,382.70x = 29,056.77 × 7,687.92
  4. Step 4: Simplify right side
    19,382.70x = 223,386,123.22
  5. Step 5: Solve for x
    x = 223,386,123.22/19,382.70
  6. Step 6: Final answer
    x = 11,525.03

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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.