Home / 18,579.13-25,638.85-10,512.70

Finding the Fourth Proportional to 18,579.13, 25,638.85 and 10,512.70

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Solution

The fourth proportional to 18,579.13, 25,638.85 and 10,512.70 is: 14,507.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.13 : 25,638.85 = 10,512.70 : x
  2. Step 2: Convert to fraction form
    18,579.13/25,638.85 = 10,512.70/x
  3. Step 3: Cross multiply
    18,579.13x = 25,638.85 × 10,512.70
  4. Step 4: Simplify right side
    18,579.13x = 269,533,538.40
  5. Step 5: Solve for x
    x = 269,533,538.40/18,579.13
  6. Step 6: Final answer
    x = 14,507.33

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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.