Home / 11,529.71-15,911.31-7,053.38

Finding the Fourth Proportional to 11,529.71, 15,911.31 and 7,053.38

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Solution

The fourth proportional to 11,529.71, 15,911.31 and 7,053.38 is: 9,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,529.71 : 15,911.31 = 7,053.38 : x
  2. Step 2: Convert to fraction form
    11,529.71/15,911.31 = 7,053.38/x
  3. Step 3: Cross multiply
    11,529.71x = 15,911.31 × 7,053.38
  4. Step 4: Simplify right side
    11,529.71x = 112,228,436.17
  5. Step 5: Solve for x
    x = 112,228,436.17/11,529.71
  6. Step 6: Final answer
    x = 9,733.85

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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.