Home / 11,617.48-16,032.45-7,143.85

Finding the Fourth Proportional to 11,617.48, 16,032.45 and 7,143.85

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Solution

The fourth proportional to 11,617.48, 16,032.45 and 7,143.85 is: 9,858.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,617.48 : 16,032.45 = 7,143.85 : x
  2. Step 2: Convert to fraction form
    11,617.48/16,032.45 = 7,143.85/x
  3. Step 3: Cross multiply
    11,617.48x = 16,032.45 × 7,143.85
  4. Step 4: Simplify right side
    11,617.48x = 114,533,417.93
  5. Step 5: Solve for x
    x = 114,533,417.93/11,617.48
  6. Step 6: Final answer
    x = 9,858.71

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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.