Home / 11,526.96-15,899.04-7,991.28

Finding the Fourth Proportional to 11,526.96, 15,899.04 and 7,991.28

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Solution

The fourth proportional to 11,526.96, 15,899.04 and 7,991.28 is: 11,022.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,526.96 : 15,899.04 = 7,991.28 : x
  2. Step 2: Convert to fraction form
    11,526.96/15,899.04 = 7,991.28/x
  3. Step 3: Cross multiply
    11,526.96x = 15,899.04 × 7,991.28
  4. Step 4: Simplify right side
    11,526.96x = 127,053,680.37
  5. Step 5: Solve for x
    x = 127,053,680.37/11,526.96
  6. Step 6: Final answer
    x = 11,022.31

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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.