Home / 10,711.45-16,140.31-8,806.33

Finding the Fourth Proportional to 10,711.45, 16,140.31 and 8,806.33

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Solution

The fourth proportional to 10,711.45, 16,140.31 and 8,806.33 is: 13,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.45 : 16,140.31 = 8,806.33 : x
  2. Step 2: Convert to fraction form
    10,711.45/16,140.31 = 8,806.33/x
  3. Step 3: Cross multiply
    10,711.45x = 16,140.31 × 8,806.33
  4. Step 4: Simplify right side
    10,711.45x = 142,136,896.16
  5. Step 5: Solve for x
    x = 142,136,896.16/10,711.45
  6. Step 6: Final answer
    x = 13,269.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.