Home / 8,456.40-12,670.75-4,503.47

Finding the Fourth Proportional to 8,456.40, 12,670.75 and 4,503.47

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Solution

The fourth proportional to 8,456.40, 12,670.75 and 4,503.47 is: 6,747.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.40 : 12,670.75 = 4,503.47 : x
  2. Step 2: Convert to fraction form
    8,456.40/12,670.75 = 4,503.47/x
  3. Step 3: Cross multiply
    8,456.40x = 12,670.75 × 4,503.47
  4. Step 4: Simplify right side
    8,456.40x = 57,062,297.44
  5. Step 5: Solve for x
    x = 57,062,297.44/8,456.40
  6. Step 6: Final answer
    x = 6,747.82

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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.