Home / 14,027.54-19,320.37-12,139.21

Finding the Fourth Proportional to 14,027.54, 19,320.37 and 12,139.21

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Solution

The fourth proportional to 14,027.54, 19,320.37 and 12,139.21 is: 16,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,027.54 : 19,320.37 = 12,139.21 : x
  2. Step 2: Convert to fraction form
    14,027.54/19,320.37 = 12,139.21/x
  3. Step 3: Cross multiply
    14,027.54x = 19,320.37 × 12,139.21
  4. Step 4: Simplify right side
    14,027.54x = 234,534,028.71
  5. Step 5: Solve for x
    x = 234,534,028.71/14,027.54
  6. Step 6: Final answer
    x = 16,719.54

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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.