Home / 13,442.37-20,160.91-12,775.59

Finding the Fourth Proportional to 13,442.37, 20,160.91 and 12,775.59

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Solution

The fourth proportional to 13,442.37, 20,160.91 and 12,775.59 is: 19,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.37 : 20,160.91 = 12,775.59 : x
  2. Step 2: Convert to fraction form
    13,442.37/20,160.91 = 12,775.59/x
  3. Step 3: Cross multiply
    13,442.37x = 20,160.91 × 12,775.59
  4. Step 4: Simplify right side
    13,442.37x = 257,567,520.19
  5. Step 5: Solve for x
    x = 257,567,520.19/13,442.37
  6. Step 6: Final answer
    x = 19,160.87

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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.