Home / 19,718.15-29,562.64-9,317.75

Finding the Fourth Proportional to 19,718.15, 29,562.64 and 9,317.75

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Solution

The fourth proportional to 19,718.15, 29,562.64 and 9,317.75 is: 13,969.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.15 : 29,562.64 = 9,317.75 : x
  2. Step 2: Convert to fraction form
    19,718.15/29,562.64 = 9,317.75/x
  3. Step 3: Cross multiply
    19,718.15x = 29,562.64 × 9,317.75
  4. Step 4: Simplify right side
    19,718.15x = 275,457,288.86
  5. Step 5: Solve for x
    x = 275,457,288.86/19,718.15
  6. Step 6: Final answer
    x = 13,969.73

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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.