Home / 19,217.19-26,518.71-10,720.20

Finding the Fourth Proportional to 19,217.19, 26,518.71 and 10,720.20

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Solution

The fourth proportional to 19,217.19, 26,518.71 and 10,720.20 is: 14,793.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.19 : 26,518.71 = 10,720.20 : x
  2. Step 2: Convert to fraction form
    19,217.19/26,518.71 = 10,720.20/x
  3. Step 3: Cross multiply
    19,217.19x = 26,518.71 × 10,720.20
  4. Step 4: Simplify right side
    19,217.19x = 284,285,874.94
  5. Step 5: Solve for x
    x = 284,285,874.94/19,217.19
  6. Step 6: Final answer
    x = 14,793.31

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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.