Home / 19,489.55-26,899.75-12,314.91

Finding the Fourth Proportional to 19,489.55, 26,899.75 and 12,314.91

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Solution

The fourth proportional to 19,489.55, 26,899.75 and 12,314.91 is: 16,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.55 : 26,899.75 = 12,314.91 : x
  2. Step 2: Convert to fraction form
    19,489.55/26,899.75 = 12,314.91/x
  3. Step 3: Cross multiply
    19,489.55x = 26,899.75 × 12,314.91
  4. Step 4: Simplify right side
    19,489.55x = 331,268,003.06
  5. Step 5: Solve for x
    x = 331,268,003.06/19,489.55
  6. Step 6: Final answer
    x = 16,997.21

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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.