Home / 19,045.22-26,291.37-12,682.40

Finding the Fourth Proportional to 19,045.22, 26,291.37 and 12,682.40

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Solution

The fourth proportional to 19,045.22, 26,291.37 and 12,682.40 is: 17,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.22 : 26,291.37 = 12,682.40 : x
  2. Step 2: Convert to fraction form
    19,045.22/26,291.37 = 12,682.40/x
  3. Step 3: Cross multiply
    19,045.22x = 26,291.37 × 12,682.40
  4. Step 4: Simplify right side
    19,045.22x = 333,437,539.43
  5. Step 5: Solve for x
    x = 333,437,539.43/19,045.22
  6. Step 6: Final answer
    x = 17,507.68

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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.