Home / 19,699.50-27,185.31-11,316

Finding the Fourth Proportional to 19,699.50, 27,185.31 and 11,316

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Solution

The fourth proportional to 19,699.50, 27,185.31 and 11,316 is: 15,616.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.50 : 27,185.31 = 11,316 : x
  2. Step 2: Convert to fraction form
    19,699.50/27,185.31 = 11,316/x
  3. Step 3: Cross multiply
    19,699.50x = 27,185.31 × 11,316
  4. Step 4: Simplify right side
    19,699.50x = 307,628,967.96
  5. Step 5: Solve for x
    x = 307,628,967.96/19,699.50
  6. Step 6: Final answer
    x = 15,616.08

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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.