Home / 15,548.25-21,456.57-8,474.68

Finding the Fourth Proportional to 15,548.25, 21,456.57 and 8,474.68

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Solution

The fourth proportional to 15,548.25, 21,456.57 and 8,474.68 is: 11,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.25 : 21,456.57 = 8,474.68 : x
  2. Step 2: Convert to fraction form
    15,548.25/21,456.57 = 8,474.68/x
  3. Step 3: Cross multiply
    15,548.25x = 21,456.57 × 8,474.68
  4. Step 4: Simplify right side
    15,548.25x = 181,837,564.65
  5. Step 5: Solve for x
    x = 181,837,564.65/15,548.25
  6. Step 6: Final answer
    x = 11,695.05

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1.5x scale

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.