Home / 18,820.36-25,971.78-10,436.68

Finding the Fourth Proportional to 18,820.36, 25,971.78 and 10,436.68

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Solution

The fourth proportional to 18,820.36, 25,971.78 and 10,436.68 is: 14,402.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.36 : 25,971.78 = 10,436.68 : x
  2. Step 2: Convert to fraction form
    18,820.36/25,971.78 = 10,436.68/x
  3. Step 3: Cross multiply
    18,820.36x = 25,971.78 × 10,436.68
  4. Step 4: Simplify right side
    18,820.36x = 271,059,156.89
  5. Step 5: Solve for x
    x = 271,059,156.89/18,820.36
  6. Step 6: Final answer
    x = 14,402.44

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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.