Home / 16,978.94-23,428.26-9,710.90

Finding the Fourth Proportional to 16,978.94, 23,428.26 and 9,710.90

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Solution

The fourth proportional to 16,978.94, 23,428.26 and 9,710.90 is: 13,399.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,978.94 : 23,428.26 = 9,710.90 : x
  2. Step 2: Convert to fraction form
    16,978.94/23,428.26 = 9,710.90/x
  3. Step 3: Cross multiply
    16,978.94x = 23,428.26 × 9,710.90
  4. Step 4: Simplify right side
    16,978.94x = 227,509,490.03
  5. Step 5: Solve for x
    x = 227,509,490.03/16,978.94
  6. Step 6: Final answer
    x = 13,399.51

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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.