Home / 13,585.12-18,747.24-7,923.16

Finding the Fourth Proportional to 13,585.12, 18,747.24 and 7,923.16

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Solution

The fourth proportional to 13,585.12, 18,747.24 and 7,923.16 is: 10,933.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.12 : 18,747.24 = 7,923.16 : x
  2. Step 2: Convert to fraction form
    13,585.12/18,747.24 = 7,923.16/x
  3. Step 3: Cross multiply
    13,585.12x = 18,747.24 × 7,923.16
  4. Step 4: Simplify right side
    13,585.12x = 148,537,382.08
  5. Step 5: Solve for x
    x = 148,537,382.08/13,585.12
  6. Step 6: Final answer
    x = 10,933.83

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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.