Home / 13,443.05-18,556.02-8,137.87

Finding the Fourth Proportional to 13,443.05, 18,556.02 and 8,137.87

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Solution

The fourth proportional to 13,443.05, 18,556.02 and 8,137.87 is: 11,233.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.05 : 18,556.02 = 8,137.87 : x
  2. Step 2: Convert to fraction form
    13,443.05/18,556.02 = 8,137.87/x
  3. Step 3: Cross multiply
    13,443.05x = 18,556.02 × 8,137.87
  4. Step 4: Simplify right side
    13,443.05x = 151,006,385.70
  5. Step 5: Solve for x
    x = 151,006,385.70/13,443.05
  6. Step 6: Final answer
    x = 11,233.05

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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.