Home / 15,983.56-23,983.45-10,778.50

Finding the Fourth Proportional to 15,983.56, 23,983.45 and 10,778.50

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Solution

The fourth proportional to 15,983.56, 23,983.45 and 10,778.50 is: 16,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.56 : 23,983.45 = 10,778.50 : x
  2. Step 2: Convert to fraction form
    15,983.56/23,983.45 = 10,778.50/x
  3. Step 3: Cross multiply
    15,983.56x = 23,983.45 × 10,778.50
  4. Step 4: Simplify right side
    15,983.56x = 258,505,615.83
  5. Step 5: Solve for x
    x = 258,505,615.83/15,983.56
  6. Step 6: Final answer
    x = 16,173.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.