Home / 11,006.64-15,180.69-7,420.26

Finding the Fourth Proportional to 11,006.64, 15,180.69 and 7,420.26

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Solution

The fourth proportional to 11,006.64, 15,180.69 and 7,420.26 is: 10,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.64 : 15,180.69 = 7,420.26 : x
  2. Step 2: Convert to fraction form
    11,006.64/15,180.69 = 7,420.26/x
  3. Step 3: Cross multiply
    11,006.64x = 15,180.69 × 7,420.26
  4. Step 4: Simplify right side
    11,006.64x = 112,644,666.78
  5. Step 5: Solve for x
    x = 112,644,666.78/11,006.64
  6. Step 6: Final answer
    x = 10,234.25

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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.