Home / 8,245.23-11,368.40-5,729.43

Finding the Fourth Proportional to 8,245.23, 11,368.40 and 5,729.43

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Solution

The fourth proportional to 8,245.23, 11,368.40 and 5,729.43 is: 7,899.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.23 : 11,368.40 = 5,729.43 : x
  2. Step 2: Convert to fraction form
    8,245.23/11,368.40 = 5,729.43/x
  3. Step 3: Cross multiply
    8,245.23x = 11,368.40 × 5,729.43
  4. Step 4: Simplify right side
    8,245.23x = 65,134,423.36
  5. Step 5: Solve for x
    x = 65,134,423.36/8,245.23
  6. Step 6: Final answer
    x = 7,899.65

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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.