Home / 18,513.77-25,548.50-10,555.81

Finding the Fourth Proportional to 18,513.77, 25,548.50 and 10,555.81

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Solution

The fourth proportional to 18,513.77, 25,548.50 and 10,555.81 is: 14,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.77 : 25,548.50 = 10,555.81 : x
  2. Step 2: Convert to fraction form
    18,513.77/25,548.50 = 10,555.81/x
  3. Step 3: Cross multiply
    18,513.77x = 25,548.50 × 10,555.81
  4. Step 4: Simplify right side
    18,513.77x = 269,685,074.30
  5. Step 5: Solve for x
    x = 269,685,074.30/18,513.77
  6. Step 6: Final answer
    x = 14,566.73

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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.