Home / 13,636.29-18,820.39-7,892.92

Finding the Fourth Proportional to 13,636.29, 18,820.39 and 7,892.92

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Solution

The fourth proportional to 13,636.29, 18,820.39 and 7,892.92 is: 10,893.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.29 : 18,820.39 = 7,892.92 : x
  2. Step 2: Convert to fraction form
    13,636.29/18,820.39 = 7,892.92/x
  3. Step 3: Cross multiply
    13,636.29x = 18,820.39 × 7,892.92
  4. Step 4: Simplify right side
    13,636.29x = 148,547,782.36
  5. Step 5: Solve for x
    x = 148,547,782.36/13,636.29
  6. Step 6: Final answer
    x = 10,893.56

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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.