Home / 8,648.17-12,971.64-4,938.77

Finding the Fourth Proportional to 8,648.17, 12,971.64 and 4,938.77

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Solution

The fourth proportional to 8,648.17, 12,971.64 and 4,938.77 is: 7,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,648.17 : 12,971.64 = 4,938.77 : x
  2. Step 2: Convert to fraction form
    8,648.17/12,971.64 = 4,938.77/x
  3. Step 3: Cross multiply
    8,648.17x = 12,971.64 × 4,938.77
  4. Step 4: Simplify right side
    8,648.17x = 64,063,997.43
  5. Step 5: Solve for x
    x = 64,063,997.43/8,648.17
  6. Step 6: Final answer
    x = 7,407.81

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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.