Home / 11,201.40-15,458.67-7,418.00

Finding the Fourth Proportional to 11,201.40, 15,458.67 and 7,418.00

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Solution

The fourth proportional to 11,201.40, 15,458.67 and 7,418.00 is: 10,237.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.40 : 15,458.67 = 7,418.00 : x
  2. Step 2: Convert to fraction form
    11,201.40/15,458.67 = 7,418.00/x
  3. Step 3: Cross multiply
    11,201.40x = 15,458.67 × 7,418.00
  4. Step 4: Simplify right side
    11,201.40x = 114,672,336.77
  5. Step 5: Solve for x
    x = 114,672,336.77/11,201.40
  6. Step 6: Final answer
    x = 10,237.32

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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.