Home / 10,280.91-15,421.41-3,260.91

Finding the Fourth Proportional to 10,280.91, 15,421.41 and 3,260.91

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Solution

The fourth proportional to 10,280.91, 15,421.41 and 3,260.91 is: 4,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.91 : 15,421.41 = 3,260.91 : x
  2. Step 2: Convert to fraction form
    10,280.91/15,421.41 = 3,260.91/x
  3. Step 3: Cross multiply
    10,280.91x = 15,421.41 × 3,260.91
  4. Step 4: Simplify right side
    10,280.91x = 50,287,830.08
  5. Step 5: Solve for x
    x = 50,287,830.08/10,280.91
  6. Step 6: Final answer
    x = 4,891.38

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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.