Home / 7,124.68-10,689.18-4,196.80

Finding the Fourth Proportional to 7,124.68, 10,689.18 and 4,196.80

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Solution

The fourth proportional to 7,124.68, 10,689.18 and 4,196.80 is: 6,296.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.68 : 10,689.18 = 4,196.80 : x
  2. Step 2: Convert to fraction form
    7,124.68/10,689.18 = 4,196.80/x
  3. Step 3: Cross multiply
    7,124.68x = 10,689.18 × 4,196.80
  4. Step 4: Simplify right side
    7,124.68x = 44,860,350.62
  5. Step 5: Solve for x
    x = 44,860,350.62/7,124.68
  6. Step 6: Final answer
    x = 6,296.47

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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.