Home / 14,629.92-21,918.96-9,990.24

Finding the Fourth Proportional to 14,629.92, 21,918.96 and 9,990.24

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Solution

The fourth proportional to 14,629.92, 21,918.96 and 9,990.24 is: 14,967.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.92 : 21,918.96 = 9,990.24 : x
  2. Step 2: Convert to fraction form
    14,629.92/21,918.96 = 9,990.24/x
  3. Step 3: Cross multiply
    14,629.92x = 21,918.96 × 9,990.24
  4. Step 4: Simplify right side
    14,629.92x = 218,975,670.95
  5. Step 5: Solve for x
    x = 218,975,670.95/14,629.92
  6. Step 6: Final answer
    x = 14,967.66

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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.