Home / 10,613.84-15,915.30-4,765.44

Finding the Fourth Proportional to 10,613.84, 15,915.30 and 4,765.44

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Solution

The fourth proportional to 10,613.84, 15,915.30 and 4,765.44 is: 7,145.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,613.84 : 15,915.30 = 4,765.44 : x
  2. Step 2: Convert to fraction form
    10,613.84/15,915.30 = 4,765.44/x
  3. Step 3: Cross multiply
    10,613.84x = 15,915.30 × 4,765.44
  4. Step 4: Simplify right side
    10,613.84x = 75,843,407.23
  5. Step 5: Solve for x
    x = 75,843,407.23/10,613.84
  6. Step 6: Final answer
    x = 7,145.71

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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.