Home / 13,442.54-20,157.64-7,898.49

Finding the Fourth Proportional to 13,442.54, 20,157.64 and 7,898.49

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Solution

The fourth proportional to 13,442.54, 20,157.64 and 7,898.49 is: 11,844.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.54 : 20,157.64 = 7,898.49 : x
  2. Step 2: Convert to fraction form
    13,442.54/20,157.64 = 7,898.49/x
  3. Step 3: Cross multiply
    13,442.54x = 20,157.64 × 7,898.49
  4. Step 4: Simplify right side
    13,442.54x = 159,214,898.22
  5. Step 5: Solve for x
    x = 159,214,898.22/13,442.54
  6. Step 6: Final answer
    x = 11,844.11

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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.