Home / 18,655.72-25,744.98-10,157.80

Finding the Fourth Proportional to 18,655.72, 25,744.98 and 10,157.80

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Solution

The fourth proportional to 18,655.72, 25,744.98 and 10,157.80 is: 14,017.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,655.72 : 25,744.98 = 10,157.80 : x
  2. Step 2: Convert to fraction form
    18,655.72/25,744.98 = 10,157.80/x
  3. Step 3: Cross multiply
    18,655.72x = 25,744.98 × 10,157.80
  4. Step 4: Simplify right side
    18,655.72x = 261,512,357.84
  5. Step 5: Solve for x
    x = 261,512,357.84/18,655.72
  6. Step 6: Final answer
    x = 14,017.81

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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.