Home / 8,916.66-12,305.28-4,938.15

Finding the Fourth Proportional to 8,916.66, 12,305.28 and 4,938.15

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Solution

The fourth proportional to 8,916.66, 12,305.28 and 4,938.15 is: 6,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.66 : 12,305.28 = 4,938.15 : x
  2. Step 2: Convert to fraction form
    8,916.66/12,305.28 = 4,938.15/x
  3. Step 3: Cross multiply
    8,916.66x = 12,305.28 × 4,938.15
  4. Step 4: Simplify right side
    8,916.66x = 60,765,318.43
  5. Step 5: Solve for x
    x = 60,765,318.43/8,916.66
  6. Step 6: Final answer
    x = 6,814.81

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1.5x scale

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.