Home / 12,432.32-18,649.44-3,548.28

Finding the Fourth Proportional to 12,432.32, 18,649.44 and 3,548.28

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Solution

The fourth proportional to 12,432.32, 18,649.44 and 3,548.28 is: 5,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.32 : 18,649.44 = 3,548.28 : x
  2. Step 2: Convert to fraction form
    12,432.32/18,649.44 = 3,548.28/x
  3. Step 3: Cross multiply
    12,432.32x = 18,649.44 × 3,548.28
  4. Step 4: Simplify right side
    12,432.32x = 66,173,434.96
  5. Step 5: Solve for x
    x = 66,173,434.96/12,432.32
  6. Step 6: Final answer
    x = 5,322.69

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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.