Home / 19,408.55-26,775.36-12,331.17

Finding the Fourth Proportional to 19,408.55, 26,775.36 and 12,331.17

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Solution

The fourth proportional to 19,408.55, 26,775.36 and 12,331.17 is: 17,011.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,408.55 : 26,775.36 = 12,331.17 : x
  2. Step 2: Convert to fraction form
    19,408.55/26,775.36 = 12,331.17/x
  3. Step 3: Cross multiply
    19,408.55x = 26,775.36 × 12,331.17
  4. Step 4: Simplify right side
    19,408.55x = 330,171,515.97
  5. Step 5: Solve for x
    x = 330,171,515.97/19,408.55
  6. Step 6: Final answer
    x = 17,011.66

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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.