Home / 18,362.12-25,339.65-10,405.85

Finding the Fourth Proportional to 18,362.12, 25,339.65 and 10,405.85

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Solution

The fourth proportional to 18,362.12, 25,339.65 and 10,405.85 is: 14,360.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.12 : 25,339.65 = 10,405.85 : x
  2. Step 2: Convert to fraction form
    18,362.12/25,339.65 = 10,405.85/x
  3. Step 3: Cross multiply
    18,362.12x = 25,339.65 × 10,405.85
  4. Step 4: Simplify right side
    18,362.12x = 263,680,470.25
  5. Step 5: Solve for x
    x = 263,680,470.25/18,362.12
  6. Step 6: Final answer
    x = 14,360.03

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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.