Home / 19,108.16-26,378.22-12,745.40

Finding the Fourth Proportional to 19,108.16, 26,378.22 and 12,745.40

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Solution

The fourth proportional to 19,108.16, 26,378.22 and 12,745.40 is: 17,594.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,108.16 : 26,378.22 = 12,745.40 : x
  2. Step 2: Convert to fraction form
    19,108.16/26,378.22 = 12,745.40/x
  3. Step 3: Cross multiply
    19,108.16x = 26,378.22 × 12,745.40
  4. Step 4: Simplify right side
    19,108.16x = 336,200,965.19
  5. Step 5: Solve for x
    x = 336,200,965.19/19,108.16
  6. Step 6: Final answer
    x = 17,594.63

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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.