Home / 18,488.42-25,511.07-10,530.80

Finding the Fourth Proportional to 18,488.42, 25,511.07 and 10,530.80

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Solution

The fourth proportional to 18,488.42, 25,511.07 and 10,530.80 is: 14,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.42 : 25,511.07 = 10,530.80 : x
  2. Step 2: Convert to fraction form
    18,488.42/25,511.07 = 10,530.80/x
  3. Step 3: Cross multiply
    18,488.42x = 25,511.07 × 10,530.80
  4. Step 4: Simplify right side
    18,488.42x = 268,651,975.96
  5. Step 5: Solve for x
    x = 268,651,975.96/18,488.42
  6. Step 6: Final answer
    x = 14,530.82

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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.