Home / 13,585.25-18,747.71-7,923.94

Finding the Fourth Proportional to 13,585.25, 18,747.71 and 7,923.94

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Solution

The fourth proportional to 13,585.25, 18,747.71 and 7,923.94 is: 10,935.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.25 : 18,747.71 = 7,923.94 : x
  2. Step 2: Convert to fraction form
    13,585.25/18,747.71 = 7,923.94/x
  3. Step 3: Cross multiply
    13,585.25x = 18,747.71 × 7,923.94
  4. Step 4: Simplify right side
    13,585.25x = 148,555,729.18
  5. Step 5: Solve for x
    x = 148,555,729.18/13,585.25
  6. Step 6: Final answer
    x = 10,935.08

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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.