Home / 7,613.10-10,511.28-4,930.80

Finding the Fourth Proportional to 7,613.10, 10,511.28 and 4,930.80

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Solution

The fourth proportional to 7,613.10, 10,511.28 and 4,930.80 is: 6,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.10 : 10,511.28 = 4,930.80 : x
  2. Step 2: Convert to fraction form
    7,613.10/10,511.28 = 4,930.80/x
  3. Step 3: Cross multiply
    7,613.10x = 10,511.28 × 4,930.80
  4. Step 4: Simplify right side
    7,613.10x = 51,829,019.42
  5. Step 5: Solve for x
    x = 51,829,019.42/7,613.10
  6. Step 6: Final answer
    x = 6,807.87

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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.