Home / 10,486.72-15,729.96-4,245.04

Finding the Fourth Proportional to 10,486.72, 15,729.96 and 4,245.04

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Solution

The fourth proportional to 10,486.72, 15,729.96 and 4,245.04 is: 6,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.72 : 15,729.96 = 4,245.04 : x
  2. Step 2: Convert to fraction form
    10,486.72/15,729.96 = 4,245.04/x
  3. Step 3: Cross multiply
    10,486.72x = 15,729.96 × 4,245.04
  4. Step 4: Simplify right side
    10,486.72x = 66,774,270.07
  5. Step 5: Solve for x
    x = 66,774,270.07/10,486.72
  6. Step 6: Final answer
    x = 6,367.51

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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.