Home / 15,548.20-21,456.52-8,475.08

Finding the Fourth Proportional to 15,548.20, 21,456.52 and 8,475.08

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Solution

The fourth proportional to 15,548.20, 21,456.52 and 8,475.08 is: 11,695.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.20 : 21,456.52 = 8,475.08 : x
  2. Step 2: Convert to fraction form
    15,548.20/21,456.52 = 8,475.08/x
  3. Step 3: Cross multiply
    15,548.20x = 21,456.52 × 8,475.08
  4. Step 4: Simplify right side
    15,548.20x = 181,845,739.58
  5. Step 5: Solve for x
    x = 181,845,739.58/15,548.20
  6. Step 6: Final answer
    x = 11,695.61

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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.