Home / 13,763.74-18,975.88-9,932.16

Finding the Fourth Proportional to 13,763.74, 18,975.88 and 9,932.16

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Solution

The fourth proportional to 13,763.74, 18,975.88 and 9,932.16 is: 13,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.74 : 18,975.88 = 9,932.16 : x
  2. Step 2: Convert to fraction form
    13,763.74/18,975.88 = 9,932.16/x
  3. Step 3: Cross multiply
    13,763.74x = 18,975.88 × 9,932.16
  4. Step 4: Simplify right side
    13,763.74x = 188,471,476.30
  5. Step 5: Solve for x
    x = 188,471,476.30/13,763.74
  6. Step 6: Final answer
    x = 13,693.33

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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.