Home / 17,430.12-26,134.23-12,687.97

Finding the Fourth Proportional to 17,430.12, 26,134.23 and 12,687.97

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Solution

The fourth proportional to 17,430.12, 26,134.23 and 12,687.97 is: 19,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,430.12 : 26,134.23 = 12,687.97 : x
  2. Step 2: Convert to fraction form
    17,430.12/26,134.23 = 12,687.97/x
  3. Step 3: Cross multiply
    17,430.12x = 26,134.23 × 12,687.97
  4. Step 4: Simplify right side
    17,430.12x = 331,590,326.21
  5. Step 5: Solve for x
    x = 331,590,326.21/17,430.12
  6. Step 6: Final answer
    x = 19,023.98

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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.