Home / 8,723.47-13,052.88-5,215.42

Finding the Fourth Proportional to 8,723.47, 13,052.88 and 5,215.42

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Solution

The fourth proportional to 8,723.47, 13,052.88 and 5,215.42 is: 7,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.47 : 13,052.88 = 5,215.42 : x
  2. Step 2: Convert to fraction form
    8,723.47/13,052.88 = 5,215.42/x
  3. Step 3: Cross multiply
    8,723.47x = 13,052.88 × 5,215.42
  4. Step 4: Simplify right side
    8,723.47x = 68,076,251.41
  5. Step 5: Solve for x
    x = 68,076,251.41/8,723.47
  6. Step 6: Final answer
    x = 7,803.80

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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.