Home / 10,912.23-15,051.96-7,515.09

Finding the Fourth Proportional to 10,912.23, 15,051.96 and 7,515.09

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Solution

The fourth proportional to 10,912.23, 15,051.96 and 7,515.09 is: 10,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.23 : 15,051.96 = 7,515.09 : x
  2. Step 2: Convert to fraction form
    10,912.23/15,051.96 = 7,515.09/x
  3. Step 3: Cross multiply
    10,912.23x = 15,051.96 × 7,515.09
  4. Step 4: Simplify right side
    10,912.23x = 113,116,834.08
  5. Step 5: Solve for x
    x = 113,116,834.08/10,912.23
  6. Step 6: Final answer
    x = 10,366.06

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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.