Home / 19,143.36-26,408.12-12,432.71

Finding the Fourth Proportional to 19,143.36, 26,408.12 and 12,432.71

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Solution

The fourth proportional to 19,143.36, 26,408.12 and 12,432.71 is: 17,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.36 : 26,408.12 = 12,432.71 : x
  2. Step 2: Convert to fraction form
    19,143.36/26,408.12 = 12,432.71/x
  3. Step 3: Cross multiply
    19,143.36x = 26,408.12 × 12,432.71
  4. Step 4: Simplify right side
    19,143.36x = 328,324,497.61
  5. Step 5: Solve for x
    x = 328,324,497.61/19,143.36
  6. Step 6: Final answer
    x = 17,150.83

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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.