Home / 19,120.74-26,385.70-10,623.40

Finding the Fourth Proportional to 19,120.74, 26,385.70 and 10,623.40

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Solution

The fourth proportional to 19,120.74, 26,385.70 and 10,623.40 is: 14,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.74 : 26,385.70 = 10,623.40 : x
  2. Step 2: Convert to fraction form
    19,120.74/26,385.70 = 10,623.40/x
  3. Step 3: Cross multiply
    19,120.74x = 26,385.70 × 10,623.40
  4. Step 4: Simplify right side
    19,120.74x = 280,305,845.38
  5. Step 5: Solve for x
    x = 280,305,845.38/19,120.74
  6. Step 6: Final answer
    x = 14,659.78

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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.