Home / 8,719.18-12,032.76-5,185.96

Finding the Fourth Proportional to 8,719.18, 12,032.76 and 5,185.96

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Solution

The fourth proportional to 8,719.18, 12,032.76 and 5,185.96 is: 7,156.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.18 : 12,032.76 = 5,185.96 : x
  2. Step 2: Convert to fraction form
    8,719.18/12,032.76 = 5,185.96/x
  3. Step 3: Cross multiply
    8,719.18x = 12,032.76 × 5,185.96
  4. Step 4: Simplify right side
    8,719.18x = 62,401,412.05
  5. Step 5: Solve for x
    x = 62,401,412.05/8,719.18
  6. Step 6: Final answer
    x = 7,156.80

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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.