Home / 18,436.79-25,435.53-11,350.91

Finding the Fourth Proportional to 18,436.79, 25,435.53 and 11,350.91

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Solution

The fourth proportional to 18,436.79, 25,435.53 and 11,350.91 is: 15,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.79 : 25,435.53 = 11,350.91 : x
  2. Step 2: Convert to fraction form
    18,436.79/25,435.53 = 11,350.91/x
  3. Step 3: Cross multiply
    18,436.79x = 25,435.53 × 11,350.91
  4. Step 4: Simplify right side
    18,436.79x = 288,716,284.65
  5. Step 5: Solve for x
    x = 288,716,284.65/18,436.79
  6. Step 6: Final answer
    x = 15,659.80

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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.