Home / 12,548.47-18,822.24-4,228.30

Finding the Fourth Proportional to 12,548.47, 18,822.24 and 4,228.30

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Solution

The fourth proportional to 12,548.47, 18,822.24 and 4,228.30 is: 6,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.47 : 18,822.24 = 4,228.30 : x
  2. Step 2: Convert to fraction form
    12,548.47/18,822.24 = 4,228.30/x
  3. Step 3: Cross multiply
    12,548.47x = 18,822.24 × 4,228.30
  4. Step 4: Simplify right side
    12,548.47x = 79,586,077.39
  5. Step 5: Solve for x
    x = 79,586,077.39/12,548.47
  6. Step 6: Final answer
    x = 6,342.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.