Home / 8,456.93-12,670.81-5,605.66

Finding the Fourth Proportional to 8,456.93, 12,670.81 and 5,605.66

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Solution

The fourth proportional to 8,456.93, 12,670.81 and 5,605.66 is: 8,398.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.93 : 12,670.81 = 5,605.66 : x
  2. Step 2: Convert to fraction form
    8,456.93/12,670.81 = 5,605.66/x
  3. Step 3: Cross multiply
    8,456.93x = 12,670.81 × 5,605.66
  4. Step 4: Simplify right side
    8,456.93x = 71,028,252.78
  5. Step 5: Solve for x
    x = 71,028,252.78/8,456.93
  6. Step 6: Final answer
    x = 8,398.82

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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.