Home / 19,290.92-26,640.43-13,337.96

Finding the Fourth Proportional to 19,290.92, 26,640.43 and 13,337.96

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Solution

The fourth proportional to 19,290.92, 26,640.43 and 13,337.96 is: 18,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.92 : 26,640.43 = 13,337.96 : x
  2. Step 2: Convert to fraction form
    19,290.92/26,640.43 = 13,337.96/x
  3. Step 3: Cross multiply
    19,290.92x = 26,640.43 × 13,337.96
  4. Step 4: Simplify right side
    19,290.92x = 355,328,823.18
  5. Step 5: Solve for x
    x = 355,328,823.18/19,290.92
  6. Step 6: Final answer
    x = 18,419.49

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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.