Home / 13,908.24-19,187.28-8,316

Finding the Fourth Proportional to 13,908.24, 19,187.28 and 8,316

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Solution

The fourth proportional to 13,908.24, 19,187.28 and 8,316 is: 11,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.24 : 19,187.28 = 8,316 : x
  2. Step 2: Convert to fraction form
    13,908.24/19,187.28 = 8,316/x
  3. Step 3: Cross multiply
    13,908.24x = 19,187.28 × 8,316
  4. Step 4: Simplify right side
    13,908.24x = 159,561,420.48
  5. Step 5: Solve for x
    x = 159,561,420.48/13,908.24
  6. Step 6: Final answer
    x = 11,472.44

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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.