Home / 13,585.08-18,747.48-7,923.75

Finding the Fourth Proportional to 13,585.08, 18,747.48 and 7,923.75

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Solution

The fourth proportional to 13,585.08, 18,747.48 and 7,923.75 is: 10,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.08 : 18,747.48 = 7,923.75 : x
  2. Step 2: Convert to fraction form
    13,585.08/18,747.48 = 7,923.75/x
  3. Step 3: Cross multiply
    13,585.08x = 18,747.48 × 7,923.75
  4. Step 4: Simplify right side
    13,585.08x = 148,550,344.65
  5. Step 5: Solve for x
    x = 148,550,344.65/13,585.08
  6. Step 6: Final answer
    x = 10,934.82

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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.