Home / 15,548.73-21,457.11-8,475

Finding the Fourth Proportional to 15,548.73, 21,457.11 and 8,475

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Solution

The fourth proportional to 15,548.73, 21,457.11 and 8,475 is: 11,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.73 : 21,457.11 = 8,475 : x
  2. Step 2: Convert to fraction form
    15,548.73/21,457.11 = 8,475/x
  3. Step 3: Cross multiply
    15,548.73x = 21,457.11 × 8,475
  4. Step 4: Simplify right side
    15,548.73x = 181,849,039.03
  5. Step 5: Solve for x
    x = 181,849,039.03/15,548.73
  6. Step 6: Final answer
    x = 11,695.43

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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.