Home / 14,727.48-20,317.32-9,945.90

Finding the Fourth Proportional to 14,727.48, 20,317.32 and 9,945.90

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Solution

The fourth proportional to 14,727.48, 20,317.32 and 9,945.90 is: 13,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,727.48 : 20,317.32 = 9,945.90 : x
  2. Step 2: Convert to fraction form
    14,727.48/20,317.32 = 9,945.90/x
  3. Step 3: Cross multiply
    14,727.48x = 20,317.32 × 9,945.90
  4. Step 4: Simplify right side
    14,727.48x = 202,074,032.99
  5. Step 5: Solve for x
    x = 202,074,032.99/14,727.48
  6. Step 6: Final answer
    x = 13,720.88

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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.