Home / 10,205.34-15,308.01-3,280.38

Finding the Fourth Proportional to 10,205.34, 15,308.01 and 3,280.38

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Solution

The fourth proportional to 10,205.34, 15,308.01 and 3,280.38 is: 4,920.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.34 : 15,308.01 = 3,280.38 : x
  2. Step 2: Convert to fraction form
    10,205.34/15,308.01 = 3,280.38/x
  3. Step 3: Cross multiply
    10,205.34x = 15,308.01 × 3,280.38
  4. Step 4: Simplify right side
    10,205.34x = 50,216,089.84
  5. Step 5: Solve for x
    x = 50,216,089.84/10,205.34
  6. Step 6: Final answer
    x = 4,920.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.