Home / 8,340.91-12,511.36-2,100.98

Finding the Fourth Proportional to 8,340.91, 12,511.36 and 2,100.98

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Solution

The fourth proportional to 8,340.91, 12,511.36 and 2,100.98 is: 3,151.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.91 : 12,511.36 = 2,100.98 : x
  2. Step 2: Convert to fraction form
    8,340.91/12,511.36 = 2,100.98/x
  3. Step 3: Cross multiply
    8,340.91x = 12,511.36 × 2,100.98
  4. Step 4: Simplify right side
    8,340.91x = 26,286,117.13
  5. Step 5: Solve for x
    x = 26,286,117.13/8,340.91
  6. Step 6: Final answer
    x = 3,151.47

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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.