Home / 9,688.89-13,372.83-6,151.44

Finding the Fourth Proportional to 9,688.89, 13,372.83 and 6,151.44

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Solution

The fourth proportional to 9,688.89, 13,372.83 and 6,151.44 is: 8,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.89 : 13,372.83 = 6,151.44 : x
  2. Step 2: Convert to fraction form
    9,688.89/13,372.83 = 6,151.44/x
  3. Step 3: Cross multiply
    9,688.89x = 13,372.83 × 6,151.44
  4. Step 4: Simplify right side
    9,688.89x = 82,262,161.38
  5. Step 5: Solve for x
    x = 82,262,161.38/9,688.89
  6. Step 6: Final answer
    x = 8,490.36

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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.