Home / 15,723.07-21,697.83-9,435.43

Finding the Fourth Proportional to 15,723.07, 21,697.83 and 9,435.43

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Solution

The fourth proportional to 15,723.07, 21,697.83 and 9,435.43 is: 13,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.07 : 21,697.83 = 9,435.43 : x
  2. Step 2: Convert to fraction form
    15,723.07/21,697.83 = 9,435.43/x
  3. Step 3: Cross multiply
    15,723.07x = 21,697.83 × 9,435.43
  4. Step 4: Simplify right side
    15,723.07x = 204,728,356.12
  5. Step 5: Solve for x
    x = 204,728,356.12/15,723.07
  6. Step 6: Final answer
    x = 13,020.89

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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.