Home / 11,529.10-15,909.51-6,813.82

Finding the Fourth Proportional to 11,529.10, 15,909.51 and 6,813.82

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Solution

The fourth proportional to 11,529.10, 15,909.51 and 6,813.82 is: 9,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.10 : 15,909.51 = 6,813.82 : x
  2. Step 2: Convert to fraction form
    11,529.10/15,909.51 = 6,813.82/x
  3. Step 3: Cross multiply
    11,529.10x = 15,909.51 × 6,813.82
  4. Step 4: Simplify right side
    11,529.10x = 108,404,537.43
  5. Step 5: Solve for x
    x = 108,404,537.43/11,529.10
  6. Step 6: Final answer
    x = 9,402.69

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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.