Home / 14,889.78-20,546.72-8,175.40

Finding the Fourth Proportional to 14,889.78, 20,546.72 and 8,175.40

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Solution

The fourth proportional to 14,889.78, 20,546.72 and 8,175.40 is: 11,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.78 : 20,546.72 = 8,175.40 : x
  2. Step 2: Convert to fraction form
    14,889.78/20,546.72 = 8,175.40/x
  3. Step 3: Cross multiply
    14,889.78x = 20,546.72 × 8,175.40
  4. Step 4: Simplify right side
    14,889.78x = 167,977,654.69
  5. Step 5: Solve for x
    x = 167,977,654.69/14,889.78
  6. Step 6: Final answer
    x = 11,281.41

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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.