Home / 13,091.28-19,642.32-5,298.08

Finding the Fourth Proportional to 13,091.28, 19,642.32 and 5,298.08

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Solution

The fourth proportional to 13,091.28, 19,642.32 and 5,298.08 is: 7,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.28 : 19,642.32 = 5,298.08 : x
  2. Step 2: Convert to fraction form
    13,091.28/19,642.32 = 5,298.08/x
  3. Step 3: Cross multiply
    13,091.28x = 19,642.32 × 5,298.08
  4. Step 4: Simplify right side
    13,091.28x = 104,066,582.75
  5. Step 5: Solve for x
    x = 104,066,582.75/13,091.28
  6. Step 6: Final answer
    x = 7,949.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.