Home / 18,673.40-25,769.18-10,289.88

Finding the Fourth Proportional to 18,673.40, 25,769.18 and 10,289.88

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Solution

The fourth proportional to 18,673.40, 25,769.18 and 10,289.88 is: 14,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.40 : 25,769.18 = 10,289.88 : x
  2. Step 2: Convert to fraction form
    18,673.40/25,769.18 = 10,289.88/x
  3. Step 3: Cross multiply
    18,673.40x = 25,769.18 × 10,289.88
  4. Step 4: Simplify right side
    18,673.40x = 265,161,769.90
  5. Step 5: Solve for x
    x = 265,161,769.90/18,673.40
  6. Step 6: Final answer
    x = 14,199.97

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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.