Home / 13,402.74-18,502.13-8,933.94

Finding the Fourth Proportional to 13,402.74, 18,502.13 and 8,933.94

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Solution

The fourth proportional to 13,402.74, 18,502.13 and 8,933.94 is: 12,333.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.74 : 18,502.13 = 8,933.94 : x
  2. Step 2: Convert to fraction form
    13,402.74/18,502.13 = 8,933.94/x
  3. Step 3: Cross multiply
    13,402.74x = 18,502.13 × 8,933.94
  4. Step 4: Simplify right side
    13,402.74x = 165,296,919.29
  5. Step 5: Solve for x
    x = 165,296,919.29/13,402.74
  6. Step 6: Final answer
    x = 12,333.07

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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.