Home / 18,354.28-25,328.97-10,800.90

Finding the Fourth Proportional to 18,354.28, 25,328.97 and 10,800.90

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Solution

The fourth proportional to 18,354.28, 25,328.97 and 10,800.90 is: 14,905.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.28 : 25,328.97 = 10,800.90 : x
  2. Step 2: Convert to fraction form
    18,354.28/25,328.97 = 10,800.90/x
  3. Step 3: Cross multiply
    18,354.28x = 25,328.97 × 10,800.90
  4. Step 4: Simplify right side
    18,354.28x = 273,575,672.07
  5. Step 5: Solve for x
    x = 273,575,672.07/18,354.28
  6. Step 6: Final answer
    x = 14,905.28

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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.