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Finding the Fourth Proportional to 19,121, 26,391.19 and 10,626.04

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Solution

The fourth proportional to 19,121, 26,391.19 and 10,626.04 is: 14,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121 : 26,391.19 = 10,626.04 : x
  2. Step 2: Convert to fraction form
    19,121/26,391.19 = 10,626.04/x
  3. Step 3: Cross multiply
    19,121x = 26,391.19 × 10,626.04
  4. Step 4: Simplify right side
    19,121x = 280,433,840.59
  5. Step 5: Solve for x
    x = 280,433,840.59/19,121
  6. Step 6: Final answer
    x = 14,666.27

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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.