Home / 11,280.71-16,922.70-3,490.13

Finding the Fourth Proportional to 11,280.71, 16,922.70 and 3,490.13

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Solution

The fourth proportional to 11,280.71, 16,922.70 and 3,490.13 is: 5,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,280.71 : 16,922.70 = 3,490.13 : x
  2. Step 2: Convert to fraction form
    11,280.71/16,922.70 = 3,490.13/x
  3. Step 3: Cross multiply
    11,280.71x = 16,922.70 × 3,490.13
  4. Step 4: Simplify right side
    11,280.71x = 59,062,338.34
  5. Step 5: Solve for x
    x = 59,062,338.34/11,280.71
  6. Step 6: Final answer
    x = 5,235.70

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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.