Home / 13,513.92-18,652.32-7,926.72

Finding the Fourth Proportional to 13,513.92, 18,652.32 and 7,926.72

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Solution

The fourth proportional to 13,513.92, 18,652.32 and 7,926.72 is: 10,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.92 : 18,652.32 = 7,926.72 : x
  2. Step 2: Convert to fraction form
    13,513.92/18,652.32 = 7,926.72/x
  3. Step 3: Cross multiply
    13,513.92x = 18,652.32 × 7,926.72
  4. Step 4: Simplify right side
    13,513.92x = 147,851,717.99
  5. Step 5: Solve for x
    x = 147,851,717.99/13,513.92
  6. Step 6: Final answer
    x = 10,940.70

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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.