Home / 15,548.56-21,456.90-8,475.03

Finding the Fourth Proportional to 15,548.56, 21,456.90 and 8,475.03

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Solution

The fourth proportional to 15,548.56, 21,456.90 and 8,475.03 is: 11,695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.56 : 21,456.90 = 8,475.03 : x
  2. Step 2: Convert to fraction form
    15,548.56/21,456.90 = 8,475.03/x
  3. Step 3: Cross multiply
    15,548.56x = 21,456.90 × 8,475.03
  4. Step 4: Simplify right side
    15,548.56x = 181,847,871.21
  5. Step 5: Solve for x
    x = 181,847,871.21/15,548.56
  6. Step 6: Final answer
    x = 11,695.48

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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.