Home / 13,717.22-18,929.73-7,429.70

Finding the Fourth Proportional to 13,717.22, 18,929.73 and 7,429.70

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Solution

The fourth proportional to 13,717.22, 18,929.73 and 7,429.70 is: 10,252.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.22 : 18,929.73 = 7,429.70 : x
  2. Step 2: Convert to fraction form
    13,717.22/18,929.73 = 7,429.70/x
  3. Step 3: Cross multiply
    13,717.22x = 18,929.73 × 7,429.70
  4. Step 4: Simplify right side
    13,717.22x = 140,642,214.98
  5. Step 5: Solve for x
    x = 140,642,214.98/13,717.22
  6. Step 6: Final answer
    x = 10,252.97

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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.