Home / 13,065.82-19,585.30-5,165.12

Finding the Fourth Proportional to 13,065.82, 19,585.30 and 5,165.12

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Solution

The fourth proportional to 13,065.82, 19,585.30 and 5,165.12 is: 7,742.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.82 : 19,585.30 = 5,165.12 : x
  2. Step 2: Convert to fraction form
    13,065.82/19,585.30 = 5,165.12/x
  3. Step 3: Cross multiply
    13,065.82x = 19,585.30 × 5,165.12
  4. Step 4: Simplify right side
    13,065.82x = 101,160,424.74
  5. Step 5: Solve for x
    x = 101,160,424.74/13,065.82
  6. Step 6: Final answer
    x = 7,742.37

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1.5x scale

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.