Home / 18,840.56-25,985.28-13,173.44

Finding the Fourth Proportional to 18,840.56, 25,985.28 and 13,173.44

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Solution

The fourth proportional to 18,840.56, 25,985.28 and 13,173.44 is: 18,169.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.56 : 25,985.28 = 13,173.44 : x
  2. Step 2: Convert to fraction form
    18,840.56/25,985.28 = 13,173.44/x
  3. Step 3: Cross multiply
    18,840.56x = 25,985.28 × 13,173.44
  4. Step 4: Simplify right side
    18,840.56x = 342,315,526.96
  5. Step 5: Solve for x
    x = 342,315,526.96/18,840.56
  6. Step 6: Final answer
    x = 18,169.07

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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.