Home / 19,417.22-26,798.64-11,867.90

Finding the Fourth Proportional to 19,417.22, 26,798.64 and 11,867.90

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Solution

The fourth proportional to 19,417.22, 26,798.64 and 11,867.90 is: 16,379.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,417.22 : 26,798.64 = 11,867.90 : x
  2. Step 2: Convert to fraction form
    19,417.22/26,798.64 = 11,867.90/x
  3. Step 3: Cross multiply
    19,417.22x = 26,798.64 × 11,867.90
  4. Step 4: Simplify right side
    19,417.22x = 318,043,579.66
  5. Step 5: Solve for x
    x = 318,043,579.66/19,417.22
  6. Step 6: Final answer
    x = 16,379.46

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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.