Home / 14,346.99-21,554.31-8,439

Finding the Fourth Proportional to 14,346.99, 21,554.31 and 8,439

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Solution

The fourth proportional to 14,346.99, 21,554.31 and 8,439 is: 12,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.99 : 21,554.31 = 8,439 : x
  2. Step 2: Convert to fraction form
    14,346.99/21,554.31 = 8,439/x
  3. Step 3: Cross multiply
    14,346.99x = 21,554.31 × 8,439
  4. Step 4: Simplify right side
    14,346.99x = 181,896,822.09
  5. Step 5: Solve for x
    x = 181,896,822.09/14,346.99
  6. Step 6: Final answer
    x = 12,678.40

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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.