Home / 19,005.37-26,229-12,620.68

Finding the Fourth Proportional to 19,005.37, 26,229 and 12,620.68

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Solution

The fourth proportional to 19,005.37, 26,229 and 12,620.68 is: 17,417.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.37 : 26,229 = 12,620.68 : x
  2. Step 2: Convert to fraction form
    19,005.37/26,229 = 12,620.68/x
  3. Step 3: Cross multiply
    19,005.37x = 26,229 × 12,620.68
  4. Step 4: Simplify right side
    19,005.37x = 331,027,815.72
  5. Step 5: Solve for x
    x = 331,027,815.72/19,005.37
  6. Step 6: Final answer
    x = 17,417.59

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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.