Home / 13,226.51-19,813.80-7,668.17

Finding the Fourth Proportional to 13,226.51, 19,813.80 and 7,668.17

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Solution

The fourth proportional to 13,226.51, 19,813.80 and 7,668.17 is: 11,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.51 : 19,813.80 = 7,668.17 : x
  2. Step 2: Convert to fraction form
    13,226.51/19,813.80 = 7,668.17/x
  3. Step 3: Cross multiply
    13,226.51x = 19,813.80 × 7,668.17
  4. Step 4: Simplify right side
    13,226.51x = 151,935,547.60
  5. Step 5: Solve for x
    x = 151,935,547.60/13,226.51
  6. Step 6: Final answer
    x = 11,487.20

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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.