Home / 13,649.78-20,466.27-6,256.51

Finding the Fourth Proportional to 13,649.78, 20,466.27 and 6,256.51

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Solution

The fourth proportional to 13,649.78, 20,466.27 and 6,256.51 is: 9,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,649.78 : 20,466.27 = 6,256.51 : x
  2. Step 2: Convert to fraction form
    13,649.78/20,466.27 = 6,256.51/x
  3. Step 3: Cross multiply
    13,649.78x = 20,466.27 × 6,256.51
  4. Step 4: Simplify right side
    13,649.78x = 128,047,371.75
  5. Step 5: Solve for x
    x = 128,047,371.75/13,649.78
  6. Step 6: Final answer
    x = 9,380.91

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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.