Home / 15,431.88-23,157.27-6,666.60

Finding the Fourth Proportional to 15,431.88, 23,157.27 and 6,666.60

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Solution

The fourth proportional to 15,431.88, 23,157.27 and 6,666.60 is: 10,003.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.88 : 23,157.27 = 6,666.60 : x
  2. Step 2: Convert to fraction form
    15,431.88/23,157.27 = 6,666.60/x
  3. Step 3: Cross multiply
    15,431.88x = 23,157.27 × 6,666.60
  4. Step 4: Simplify right side
    15,431.88x = 154,380,256.18
  5. Step 5: Solve for x
    x = 154,380,256.18/15,431.88
  6. Step 6: Final answer
    x = 10,003.98

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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.