Home / 15,548.69-21,456.97-8,475.14

Finding the Fourth Proportional to 15,548.69, 21,456.97 and 8,475.14

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Solution

The fourth proportional to 15,548.69, 21,456.97 and 8,475.14 is: 11,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.69 : 21,456.97 = 8,475.14 : x
  2. Step 2: Convert to fraction form
    15,548.69/21,456.97 = 8,475.14/x
  3. Step 3: Cross multiply
    15,548.69x = 21,456.97 × 8,475.14
  4. Step 4: Simplify right side
    15,548.69x = 181,850,696.25
  5. Step 5: Solve for x
    x = 181,850,696.25/15,548.69
  6. Step 6: Final answer
    x = 11,695.57

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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.